Grapple Release Tool and Methods Thereof

ABSTRACT

A grapple release tool comprising: a main body; an upper piston, wherein the upper piston is disposed inside the main body, and wherein the upper piston is adapted to shift towards a first end of the main body; a pop lock having, wherein the pop lock is disposed inside the main body, wherein the pop lock is removably connected to the upper piston; a secondary housing, wherein the secondary housing is disposed inside the main body over the pop lock; a pop lock spacer disposed in the secondary housing, wherein the pop lock spacer is disposed around a second end of the pop lock; and an upper box recut insert disposed in a first end portion of the main body is disclosed. Methods of making and using the grapple release tool are also disclosed.

PRIOR RELATED APPLICATIONS

This application claims benefit of U.S. Provisional Patent Application Ser. No. 63/273,334 entitled “GRAPPLE RELEASE TOOL AND METHODS THEREOF,” filed on Oct. 29, 2021.

FEDERALLY SPONSORED RESEARCH STATEMENT

Not Applicable (“N/A”)

REFERENCE TO MICROFICHE APPENDIX

N/A

FIELD OF INVENTION

The present invention relates generally to downhole tools and methods thereof and, more particularly, to an improved grapple release tool and methods thereof.

BACKGROUND OF THE INVENTION

A downhole tool may be used to quickly disconnect from a bottom hole assembly (BHA) if the bottom hole assembly becomes stuck in a well bore.

However, the downhole tool may be accidentally activated if something other than an intended dart lands (e.g., drifts, darts for other tools, etc.) on its activation seat.

Thus, an improved grapple release tool is needed to eliminate this problem.

SUMMARY OF THE INVENTION

In an embodiment, a grapple release tool comprises a main body, an upper piston, wherein the upper piston is disposed inside the main body, and wherein the upper piston is adapted to shift towards a first end of the main body, a pop lock, wherein the pop lock is disposed inside the main body, wherein the pop lock is removably connected to the upper piston, a secondary housing, wherein the secondary housing is disposed inside the main body over the pop lock, an optional pop lock spacer disposed in the secondary housing, wherein the optional pop lock spacer is disposed around a second end of the pop lock, and an upper box recut insert disposed in a first end portion of the main body.

In an embodiment, the main body further comprises a first nose shear screw and a plug. In an embodiment, the first nose shear screw prevents the upper piston from shifting until the grapple release tool is activated with an upper dart.

In an embodiment, one or more of the main body, the pop lock, the optional pop lock spacer, the secondary housing, and the upper box recut insert is made from a stainless steel with a minimum yield of 130 ksi. In an embodiment, one or more of the main body, the pop lock, the optional pop lock spacer, the secondary housing and the upper box recut insert is made from a stainless steel.

In an embodiment, an outer diameter of the main body is from about 4.5-inches to about 9-inches.

In an embodiment, the grapple release tool further comprises a top subassembly, and an upper ball seat disposed inside the top assembly, wherein the upper ball seat is adapted to shift towards a shoulder of the top subassembly, wherein the first end of the main body is connected to a second end of the top subassembly.

In an embodiment, the top subassembly further comprises a second nose shear screw. In an embodiment, the second nose shear screw prevents the upper ball seat from shifting downward until the grapple release tool is activated with a ball.

In an embodiment, the grapple release tool further comprises a bottom subassembly, wherein a first end of the bottom subassembly is connected to a second end of the secondary housing.

In an embodiment, the grapple release tool further comprises an upper dart, wherein a first end of the upper dart is at least partially disposed within the upper box recut insert.

In an embodiment, the grapple release tool further comprises an upper dart; and a wiper ball, wherein the wiper ball is latched to a first end and/or a second end of the upper dart, and wherein the first end of the upper dart is at least partially disposed within the upper box recut insert.

In an embodiment, the grapple release tool further comprises a ball, wherein the ball is disposed in the upper ball seat.

In an embodiment, the grapple release tool further comprises a ball, wherein the ball is disposed in a seat of the upper ball seat.

In an embodiment, a method of making a grapple release tool comprises (a) installing an upper piston into a main body, (b) installing a pop lock into the main body, (c) installing a secondary housing over the pop lock and into main housing, (d) installing an optional pop lock spacer onto the pop lock, (e) installing an upper box recut insert into the main body, (f) installing an upper ball seat into a top subassembly, (g) installing the top subassembly onto the main body, and (h) installing a bottom subassembly onto the main body.

In an embodiment, the method further comprises (i) installing first nose shear screw into the main body to prevent the upper piston from shifting until the grapple release tool is activated, and a second nose shear screw into the top subassembly to prevent the upper ball seat from shifting until the grapple release tool is further activated.

In an embodiment, the method further comprises (j) installing a plug into the main body.

In an embodiment, step (a) comprises (a) dressing the upper piston with a first seal and a c-ring; and then installing the upper piston into the main body.

In an embodiment, step (a) comprises (a) installing the upper piston on the main body and then installing a first temporary shear screw into the main body to prevent the upper piston from moving during assembly.

In an embodiment, step (c) comprises (c) installing the secondary housing over the pop lock and into splines of the main body.

In an embodiment, step (c) comprises (c) dressing the secondary housing with a second seal and then installing the secondary housing over the pop lock and into the main housing.

In an embodiment, step (e) comprises (e) dressing the upper box recut insert with a third seal and then installing the upper box recut insert into the main body.

In an embodiment, step (f) comprises (f) dressing the upper ball seat with a fourth seal and then installing the upper ball seat into the top subassembly.

In an embodiment, step (g) comprises (g) installing the top assembly onto the main body and then installing a second temporary shear screw into the top subassembly to prevent the upper ball seat from moving during the assembly.

In an embodiment, the method further comprises (i) removing the first temporary shear screw from the main body and then installing a first nose shear screw into the main body, and removing the second temporary shear screw from the top subassembly and then installing a second nose shear screw into the top subassembly.

In an embodiment, step (j) comprises: (j) dressing the pug with a seal and then installing the plug into the main body.

In an embodiment, a method of using a grapple release tool comprises (a) locating a grapple release tool within a bottom hole assembly, (b) placing an upper dart inside a drill string and deploying the upper dart down a bore of the drill string, (c) when the upper dart lands inside an upper box recut insert, the grapple release tool diverts fluid flow to a piston bias area of an upper piston, and (d) when the fluid flow overcomes a pop lock, the grapple release tool shifts the upper piston upward and releases the pop lock from the main body.

In an embodiment, the method further comprises (e) diverting fluid flow through a vent.

In an embodiment, the method further comprises (f) separating the main body from a secondary housing.

In an embodiment, step (a) comprises (a) locating the grapple release tool within the bottom hole assembly to provide optimal results when retrieving the bottom hole assembly from a stuck position in a well bore.

In an embodiment, step (b) comprises (b) placing the upper dart inside the drill string and deploying the upper dart by gravity or by pumping down the bore of the drill string.

In an embodiment, step (d) comprises: (d) when the fluid flow overcomes the pop lock and a first nose shear screw, shifting the upper piston upward and releasing a finger on the pop lock from the main body.

In an embodiment, a method of using a grapple release tool comprises (a) locating a grapple release tool within a bottom hole assembly, (b) placing a ball inside the drill string and deploying the ball by gravity or by pumping down the bore of the drill string, (c) when the ball lands on an upper ball seat, sealing the upper ball seat, and (d) when the fluid flow overcomes the upper ball seat and a second nose shear screw, shifting the upper ball seat downward against a shoulder in a top subassembly.

In an embodiment, step (b) comprises (b) placing the ball inside the drill string and deploying the ball by gravity or by pumping down the bore of the drill string.

In an embodiment, the method further comprises (e) diverting fluid flow through a vent.

In an embodiment, step (a) comprises (a) locating the grapple release tool within the bottom hole assembly to provide optimal results when retrieving the bottom hole assembly from a stuck position in a well bore.

In an embodiment, step (b) comprises (b) placing the ball inside the drill string and deploying the ball by gravity or by pumping down the bore of the drill string.

These and other objects, features and advantages will become apparent as reference is made to the following detailed description, preferred embodiments, and examples, given for the purpose of disclosure, and taken in conjunction with the accompanying drawings and appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS

For a further understanding of the nature and objects of the present invention, reference should be made to the following detailed disclosure, taken in conjunction with the accompanying drawings, in which like parts are given like reference numerals, and wherein:

FIG. 1A illustrates a cross-sectional view of a grapple release tool according to an embodiment of the invention;

FIG. 1B-1 illustrates a cross-sectional view of top subassembly for the grapple release tool of FIG. 1A;

FIG. 1B-2 illustrates a Detail B view of the top subassembly of FIG. 1B-1 ;

FIG. 1C-1 illustrates a cross-sectional view of a main body of the grapple release tool of FIG. 1A;

FIG. 1C-2 illustrates a Detail B view of the main body of FIG. 1C-1 ;

FIG. 1C-3 illustrates a Detail C view of the main body of FIG. 1C-1 ;

FIG. 1C-4 illustrates a Section D-D view of the main body of FIG. 1C-1 ;

FIG. 1D-1 illustrates a cross-sectional view of a secondary housing of the grapple release tool of FIG. 1A;

FIG. 1D-2 illustrates a Section B-B view of the secondary housing of FIG. 1D-1 ;

FIG. 1D-3 illustrates a Detail C view of the secondary housing of FIG. 1D-1 ;

FIG. 1D-4 illustrates a Detail D view of the secondary housing of FIG. 1D-1 ;

FIG. 1E-1 illustrates an end view of a pop lock of the grapple release tool of FIG. 1A;

FIG. 1E-2 illustrates a Section A-A view of the pop lock of FIG. 1E-1 ;

FIG. 1E-3 illustrates a View B-B of the pop lock of FIG. 1E-2 ;

FIG. 1E-4 illustrates a Detail C view of the pop lock of FIG. 1E-2 ;

FIG. 1F-1 illustrates an end view of an upper piston of the grapple release tool of FIG. 1A;

FIG. 1F-2 illustrates a Section A-A view of the upper piston of FIG. 1F-1 ;

FIG. 1F-3 illustrates a Section B-B view of the upper piston of FIG. 1F-1 ;

FIG. 1F-4 illustrates a Detail C view of the upper piston of FIG. 1F-2 ;

FIG. 1G-1 illustrates a cross-sectional view of a nose shear screw for the grapple release tool of FIG. 1A;

FIG. 1G-2 illustrates an end view of the nose shear screw of FIG. 1G-1 ;

FIG. 1H-1 illustrates an end view of a pop lock spacer for the grapple release tool of FIG. 1A;

FIG. 1H-2 illustrates a Section A-A view of the pop lock spacer of FIG. 1H-1 ;

FIG. 1H-3 illustrates a View B-B of the pop lock spacer of FIG. 1H-1 ;

FIG. 1I-1 illustrates a cross-sectional view of a bottom subassembly for the grapple release tool of FIG. 1A;

FIG. 1I-2 illustrates a Detail B view of the bottom subassembly of FIG. 1I-1 ;

FIG. 1J-1 illustrates a cross-sectional view of an upper dart for the grapple release tool of FIG. 1A;

FIG. 1J-2 illustrates a Detail B view of the upper dart of FIG. 1J-1 ;

FIG. 1J-3 illustrates a Detail C view of the upper dart of FIG. 1J-1 ;

FIG. 1J-4 illustrates a Detail D view of the upper dart of FIG. 1J-1 ;

FIG. 1K-1 illustrates an end view of a wiper ball of the grapple release tool of FIG. 1A;

FIG. 1K-2 illustrates a Section A-A view of the wiper ball of FIG. 1K-1 ;

FIG. 1L-1 illustrates an end view of an upper box recut insert of the grapple release tool of FIG. 1A;

FIG. 1L-2 illustrates a Section A-A view of the upper box recut insert of FIG. 1L-1 ;

FIG. 1L-3 illustrates a Detail B view of the upper box recut insert of FIG. 1L-2 ;

FIG. 1M-1 illustrates an end view of a plug of the grapple release tool of FIG. 1A;

FIG. 1M-2 illustrates a Section A-A view of the plug of FIG. 1M-1 ;

FIG. 1M-3 illustrates a Detail B view of the plug of FIG. 1M-2 ;

FIG. 1N-1 illustrates a cross-sectional view of an upper ball seat of the grapple release tool of FIG. 1A;

FIG. 1N-2 illustrates a Detail B view of the upper ball seat of FIG. 1N-1 ;

FIG. 2A-1 illustrates a cross-sectional view of the grapple release tool of FIG. 1A, showing the grapple release tool in a latched position;

FIG. 2A-2 illustrates a detail view of the grapple release tool of FIG. 2A;

FIG. 2A-3 illustrates a detail view of the grapple release tool of FIG. 2A;

FIG. 2A-4 illustrates a detail view of the grapple release tool of FIG. 2A;

FIG. 2B-1 illustrates a cross-sectional view of the grapple release tool of FIG. 1A, showing the grapple release tool in an unlatched position;

FIG. 2B-2 illustrates a detail view of the grapple release tool of FIG. 2B-1 ;

FIG. 2B-3 illustrates a detail view of the grapple release tool of FIG. 2B-1 ;

FIG. 2B-4 illustrates a detail view of the grapple release tool of FIG. 2B-1 ;

FIG. 2C-1 illustrates a cross-sectional view of the grapple release tool of FIG. 1A, showing the grapple release tool in a piston vent position;

FIG. 2C-2 illustrates a detail view of the grapple release tool of FIG. 2C-1 ;

FIG. 2C-3 illustrates a detail view of the grapple release tool of FIG. 2C-1 ;

FIG. 2C-4 illustrates a detail view of the grapple release tool of FIG. 2C-1 ;

FIG. 3A illustrates a flow chart of a method of making a grapple release tool according to an embodiment of the invention;

FIG. 3B illustrates a flow chart of the method of FIG. 3A, showing additional steps for the method;

FIG. 4A illustrates a flow chart of a method of using a grapple release tool according to an embodiment of the invention;

FIG. 4B illustrates a flow chart of the method of FIG. 4A, showing an additional step for the method;

FIG. 5A illustrates a flow chart of a method of using a grapple release tool according to an embodiment of the invention; and

FIG. 5B illustrates a flow chart of the method of FIG. 5A, showing an additional step for the method.

DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION

The following detailed description of various embodiments of the present invention references the accompanying drawings, which illustrate specific embodiments in which the invention can be practiced. While the illustrative embodiments of the invention have been described with particularity, it will be understood that various other modifications will be apparent to and can be readily made by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is not intended that the scope of the claims appended hereto be limited to the examples and descriptions set forth herein but rather that the claims be construed as encompassing all the features of patentable novelty which reside in the present invention, including all features which would be treated as equivalents thereof by those skilled in the art to which the invention pertains. Therefore, the scope of the present invention is defined only by the appended claims, along with the full scope of equivalents to which such claims are entitled.

Grapple Release Tool

Tool Assembly

The grapple release tool may be used to quickly disconnect from a bottom hole assembly (BHA) if the bottom hole assembly becomes stuck in a well bore.

The grapple release tool may be placed in strategic places within the bottom hole assembly (BHA) to provide optimal results when retrieving the bottom hole assembly from a stuck position in the well bore.

Once the bottom hole assembly becomes stuck, an operator makes a decision to activate the grapple release tool. In the activated position, the grapple release tool opens a fluid bypass to maintain circulation. Once the grapple release tool is activated, the grapple release tool opens a fluid path to allow well control operations, if needed, and to allow a ball to be deployed to shift the upper ball seat if a larger fluid path is needed.

To activate the grapple release tool, an upper dart may be placed inside the drill string and deployed by gravity or by pumping down the bore of the drill string. Once the upper dart lands on inside the upper box recut insert, the grapple release tool diverts fluid flow (pressure) to a piston bias area of the upper piston. The grapple release tool (e.g., shift-up upper piston design) prevents an accidental activation if something other than an intended dart lands (e.g., drifts, darts for other tools, etc.) on the upper box recut insert.

Once sufficient fluid flow (pressure) has built up to overcome friction of a pop lock and a nose shear screw, the grapple release tool shifts the upper piston upward, releasing a finger on the pop lock from a main body. The grapple release tool separates cleanly, leaving a large path for fishing operations.

FIG. 1A illustrates a cross-sectional view of a grapple release tool 100 according to an embodiment of the invention. As shown in FIG. 1A, the grapple release tool has a first end 101 and a second end 102. The first end 102 is typically an upper end when the grapple release tool 100 is downhole. The second end 104 is typically a lower end when the grapple release tool 100 is downhole.

The grapple release tool may have an outer diameter 105, and a length 106.

The grapple release tool 100 may have any suitable outer diameter 105. For example, a suitable outer diameter 105 may be from about 4.5-inches to about 9-inches, and any range or value there between. In an embodiment, the outer diameter 105 may be about 8.75 inches. In an embodiment, the outer diameter may be about 4.75 inches.

The grapple release tool 100 may have any suitable length 106. For example, a suitable length 106 may be from about 80-inches to about 140-inches, and any range or value there between. In an embodiment, the length 106 may be about 112-inches. In an embodiment, the length 106 may be about 111.4-inches.

The grapple release tool 100 may have a centerline 107 extending from the first end 101 to the second end 102.

In an embodiment, the grapple release tool 100 may include a top subassembly 110, a main body 130, a secondary housing 150, a pop lock 170, an upper piston 190, a nose shear screw 210, a pop lock spacer 220, a bottom subassembly 230, an upper dart 240, a wiper ball 260, an upper box recut insert 270, a plug 280 and an upper ball seat 290, as discussed further below.

The top subassembly 110, the main body 130, the secondary housing 150, the pop lock 170, the upper piston 190, the pop lock spacer 220, the bottom subassembly 230, the upper box recut insert 270 and the upper ball seat 290 may be made from any suitable material. For example, a suitable material includes, but is not limited to, a stainless steel with a minimum yield of 130 ksi, a stainless steel, and combinations thereof. In an embodiment, one or more of the top subassembly 110, the main body 130, the secondary housing 150, the pop lock 170, the upper piston 190, the pop lock spacer 220, the bottom subassembly 230, the upper box recut insert 270 and the upper ball seat 290 may be made from a stainless steel with a minimum yield of 130 ksi. In an embodiment, one or more of the top subassembly 110, the main body 130, the secondary housing 150, the pop lock 170, the upper piston 190, the pop lock spacer 220, the bottom subassembly 230, the upper box recut insert 270 and the upper ball seat 290 may be made from a stainless steel.

The upper dart 240 may be made of any suitable material. For example, a suitable material includes, but is not limited to, a rubber, a plastic, and combinations thereof. In an embodiment, the upper dart 240 may be made from a rubber. In an embodiment, the upper dart 240 may be made from a plastic.

The wiper ball 260 may be made of any suitable material. For example, a suitable mater is a rubber, a plastic, and combinations thereof. In an embodiment, the wiper ball 260 may be made of a rubber. In an embodiment, the wiper ball 260 may be made of a plastic.

Top Subassembly

FIG. 1B-1 illustrates a cross-sectional view of top subassembly 110 for the grapple release tool 100 of FIG. 1A; and FIG. 1B-2 illustrates a Detail B view of the top subassembly 110 of FIG. 1B-1 , showing an optional detail radius for a pin nose. As shown in FIGS. 1B-1 and 1B-2 , the top subassembly 110 has a first end 111 and a second end 112.

The top subassembly 110 may be any suitable top subassembly.

The top subassembly may have a first inner diameter 115 a, a second inner diameter 115 b, a third inner diameter 115 c, a first outer diameter 115 d, and a second outer diameter 115 e.

In an embodiment, the top subassembly 110 may have any suitable first inner diameter 115 a. For example, a suitable first inner diameter 115 a may be from about 4-inches to about 8.5-inches, and any range or value there between. In an embodiment, the first inner diameter 115 a may be about 5-inches.

In an embodiment, the top subassembly 110 may have any suitable second inner diameter 115 b. For example, a suitable second inner diameter 115 b may be from about 4-inches to about 8.5-inches, and any range or value there between. In an embodiment, the second inner diameter 115 b may be about 4.125-inches.

In an embodiment, the top subassembly 110 may have any suitable third inner diameter 115 c. For example, a suitable third inner diameter 115 c may be from about 4-inches to about 8.5-inches, and any range or value there between. In an embodiment, the third inner diameter 115 c may be about 3.5-inches.

In an embodiment, the top subassembly 110 may have any suitable first outer diameter 115 d. For example, a suitable first outer diameter 115 d may be from about 4.5-inches to about 9-inches, and any range or value there between. In an embodiment, the first outer diameter 115 d may be about 8.75 inches. In an embodiment, the outer diameter 115 may be about 4.75 inches.

In an embodiment, the top subassembly 110 may have any suitable second outer diameter 115 e. For example, a suitable second outer diameter 115 e may be from about 4.5-inches to about 9-inches, and any range or value there between. In an embodiment, the second outer diameter 115 d may be about 6.966-inches.

In an embodiment, the top assembly 110 may have any suitable counter bore diameter 115 f. For example, a suitable counter bore diameter 115 f may be from about 4.5-inches to about 9-inches, and any range or value there between. In an embodiment, the counter bore diameter may be about 5.5-inches.

In an embodiment, the top subassembly 110 may have any suitable pin nose diameter 115 g. For example, a suitable pin diameter 115 g may be from about 4.5-inches to about 4.5-inches, and any range or value there between. In an embodiment, the pin diameter 115 g may be about 6.43-inches.

In an embodiment, the top subassembly may have any suitable bevel diameter 115 h. For example, a suitable bevel diameter 115 h may be from about 4.5-inches to about 9-inches, and any range or value there between. For example, the bevel diameter 115 h may be about 8.25-inches.

The top subassembly 110 may have a first length 116 a, a second length 116 b, a third length 116 c, a fourth length 116 d, and total length 116.

In an embodiment, the top subassembly 110 may have any suitable first length 116 a. For example, a suitable first length 116 a may be from about 10-inches to about 14-inches, and any range or value there between. In an embodiment, the first length 116 a may be about 12-inches.

In an embodiment, a plurality of screw holes 117 may be drilled through the top subassembly 110 at the first length 116 a. In an embodiment, the plurality of screw holes 117 (e.g., 8 screw holes) may have a diameter of about 0.4-inches.

In an embodiment, the top subassembly 110 may have any suitable second length 116 b. For example, a suitable second length 116 b may be from about 12-inches to about 16-inches, and any range or value there between. In an embodiment, the second length 116 b may be about 14-inches.

In an embodiment, a plurality of holes 118 may be drilled through the top subassembly 110 at the second length 116 b. In an embodiment, the plurality of holes 118 (e.g., 4 holes) may have a diameter of about 1-inch.

In an embodiment, the top subassembly 110 may have any suitable third length 116 c. For example, a suitable third length 116 c may be from about 18-inches to about 24-inches, and any range or value there between. In an embodiment, the third length 116 c may be about 21-inches.

In an embodiment, a first shoulder 119 a may transition from the second inner diameter 115 b to a second shoulder 119 b of the top subassembly 110. In an embodiment, the first shoulder 119 a may form an angle (e.g., about 90-degrees) with the top subassembly inner wall at the second inner diameter 115 b of the top subassembly 110.

In an embodiment, the second shoulder 119 may transition from the second inner diameter 115 b to the third inner diameter 115 c of the top subassembly 110. In an embodiment, the second shoulder 119 b may form an angle (e.g., about 30-degrees) with the top assembly inner wall at the third inner diameter 115 c of the top assembly 110.

In an embodiment, the top subassembly 110 may have any suitable fourth length 116 d (from the second end of the top subassembly 110). For example, a suitable fourth length 116 d may be from 3.5 to about 7.5-inches, and any range or value there between. In an embodiment, the fourth length 115 d may be about 5.5-inches.

In an embodiment, a shoulder 121 may transition from the first outer diameter 115 d to the second outer diameter 115 e of the top subassembly 110. In an embodiment, the shoulder 121 may form an angle (e.g., about 90-degrees) with the bottom subassembly inner wall at the second outer diameter 115 e of the top subassembly 110.

In an embodiment, the shoulder 121 may have an optional bevel 122, in which the bevel 122 forms an angle (e.g., about 45-degrees) with the top subassembly outer wall of the first outer diameter 115 d at the fourth length 116 d of the top subassembly 110.

In an embodiment, a pin nose 120 may be formed in the top subassembly 110 between the fourth length 115 d and the second end 112 of the top subassembly 110. The pin nose 120 forms part of a double shoulder high torque connection. Any suitable double shoulder connection may be used.

In an embodiment, the top subassembly 110 may have any suitable total length 116. For example, a suitable total length 116 may be from about 40-inches to about 60-inches, and any range or value there between. In an embodiment, the total length 116 may be about 50-inches. In an embodiment, the total length 116 may be about 48-inches.

Main Body

FIG. 1C-1 illustrates a cross-sectional view of a main body 130 of the grapple release tool 100 of FIG. 1A; FIG. 1C-2 illustrates a Detail B view of the main body 130 of FIG. 1C-1 ; FIG. 1C-3 illustrates a Detail C view of the main body 130 of FIG. 1C-1 ; and FIG. 1C-4 illustrates a Section D-D view of the main body 130 of FIG. 1C-1 . As shown in FIGS. 1C-1 and 1C-4 , the main body 130 has a first end 131 and a second end 132.

The main body 130 may be any suitable body.

The main body 130 may have a first inner diameter 135 a, a second inner diameter 135 b, a third inner diameter 135 c, a fourth inner diameter 135 d, a fifth inner diameter 135 e, a sixth inner diameter 135 f, a seventh inner diameter 135 g, an eighth inner diameter 135 g, a ninth inner diameter 135 h, a bevel diameter 135 i, a counter bore diameter 135 k, and an outer diameter 135.

In an embodiment, the main body 130 may have any suitable first inner diameter 135 a. For example, a suitable first inner diameter 135 a may be from about 4-inches to about 8.5-inches, and any range or value there between. In an embodiment, the first inner diameter 135 a may be about 6.8-inches.

In an embodiment, the main body 130 may have any suitable second inner diameter 135 b. For example, a suitable second inner diameter 135 b may be from about 4-inches to about 8.5-inches, and any range or value there between. In an embodiment, the second inner diameter 135 b may be about 6.5-inches.

In an embodiment, the main body 130 may have any suitable third inner diameter 135 c. For example, a suitable third inner diameter 135 c may be from about 4-inches to about 8.5-inches, and any range or value there between. In an embodiment, the third inner diameter 135 c may be about 5.1-inches.

In an embodiment, the main body 130 may have any suitable fourth inner diameter 135 d. For example, a suitable fourth inner diameter 135 d may be from about 4-inches to about 8.5-inches, and any range or value there between. In an embodiment, the fourth inner diameter 135 d may be about 4.9-inches.

In an embodiment, the main body 130 may have any suitable fifth inner diameter 135 e. For example, a suitable fifth inner diameter 135 e may be from about 4-inches to about 8.5-inches, and any range or value there between. In an embodiment, the fifth inner diameter 135 e may be about 4.3-inches.

In an embodiment, the main body 130 may have any suitable sixth inner diameter 135 f. For example, a suitable sixth inner diameter 135 f may be from about 4-inches to about 8.5-inches, and any range or value there between. In an embodiment, the sixth inner diameter 135 f may be about 4.4-inches.

In an embodiment, the main body 130 may have any suitable seventh inner diameter 135 g. For example, a suitable seventh inner diameter 135 g may be from about 4-inches to about 8.5-inches, and any range or value there between. In an embodiment, the seventh inner diameter 135 g may be about 5.8-inches.

In an embodiment, the main body 130 may have any suitable eighth inner diameter 135 h. For example, a suitable eighth inner diameter 135 h may be from about 4-inches to about 8.5-inches, and any range or value there between. In an embodiment, the eighth inner diameter 135 h may be about 6.6-inches.

In an embodiment, the main body 130 may have any suitable ninth inner diameter 135 i. For example, a suitable ninth inner diameter 135 i may be from about 4-inches to about 8.5-inches, and any range or value there between. In an embodiment, the ninth inner diameter 135 i may be about 7.1-inches.

In an embodiment, the main body 130 may have an optional bevel diameter 135 j. In an embodiment, the main body 130 may have any suitable bevel diameter 135 j. For example, a suitable bevel diameter 135 j may be from about 4.5-inches to about 9-inches, and any range or value there between. In an embodiment, the bevel diameter 135 j may be about 8.3-inches.

In an embodiment, the main body 130 may have an optional counter bore diameter 135 k. In an embodiment, the main body 130 may have any suitable counter bore diameter 135 k. For example, a suitable counter bore diameter 135 k may be from about 4-inches to about 8.5-inches, and any range or value there between. In an embodiment, the counter bore diameter 135 k may be about 7-inches.

The main body 130 may have a first length 136 a, a second length 136 b, a third length 136 c, a fourth length 136 d, a fifth length 136 e, a sixth length 136 f, a seventh length 136 g, an eighth length 136 h, a ninth length 136 i, a tenth length 136 j, an eleventh length 136 k, a twelfth length 136 l, and a total length 136.

In an embodiment, the main body 130 may have any suitable first length 136 a. For example, a suitable first length 136 a may be from about 0.3-inches to about 0.9-inches, and any range or value there between. In an embodiment, the first length 136 a may be about 0.6-inches.

In an embodiment, the main body 130 may have any suitable second length 136 b. For example, a suitable second length 136 b may be from about 0.1-inches to about 0.9-inches, and any range or value there between. In an embodiment, the second length 136 b may be about 5-inches.

In an embodiment, the main body 130 may have any suitable third length 136 c. For example, a suitable third length 136 c may be from about 5.5-inches to about 15.5-inches, and any range or value there between. In an embodiment, the third length 136 c may be about 10.5-inches.

In an embodiment, a first shoulder 139 a may transition from the second inner diameter 135 b to a second shoulder 139 b of the main body 130. In an embodiment, the first shoulder 139 a may form an angle (e.g., about 90-degrees) with the main body inner wall at the second inner diameter 135 b of the main body 130.

In an embodiment, the main body 130 may have any suitable fourth length 136 d. For example, a suitable fourth length 136 d may be from about 8-inches to about 18-inches, and any range or value there between. In an embodiment, the fourth length 136 d may be about 13-inches.

In an embodiment, a second shoulder 139 b may transition from the third inner diameter 135 c to a fourth inner diameter 135 d of the main body 130. In an embodiment, the second shoulder 139 b may form an angle (e.g., about 15-degrees) with the main body inner wall at the fourth inner diameter 135 d of the main body 130.

In an embodiment, the main body 130 may have any suitable fifth length 136 e. For example, a suitable fifth length 136 e may be from about 14.3-inches to about 24.3-inches, and any range or value there between. In an embodiment, the fifth length 136 e may be about 19.3-inches.

In an embodiment, a plurality of screw holes 140 may be drilled through the main body at the fifth length 136 e. In an embodiment, the plurality of screw holes 140 (e.g., 4 screw holes) may have a diameter of about 0.5-inches. See e.g., FIGS. 1C-1 & 1C-2 .

In an embodiment, the main body 130 may have any suitable sixth length 136 f. For example, a suitable sixth length 136 f may be from about 11-inches to about 31-inches, and any range or value there between. In an embodiment, the sixth length 136 f may be about 21-inches.

In an embodiment, a third shoulder 139 c may transition from the fourth inner diameter 135 d to a fifth inner diameter 135 e of the main body 130. In an embodiment, the third shoulder 139 c may form an angle (e.g., about 15-degrees) with the main body inner wall at the fifth inner diameter 135 e of the main body 130.

In an embodiment, the main body 130 may have any suitable seventh length 136 g. For example, a suitable seventh length 136 g may be from about 3.3-inches to about 13.3-inches, and any range or value there between. In an embodiment, the seventh length 136 g may be about 8.3-inches.

In an embodiment, a fourth shoulder 139 d may transition from the fifth inner diameter 135 e to a sixth inner diameter 135 f of the main body 130. In an embodiment, the fourth shoulder 139 d may form an angle (e.g., about 45-degrees) with the main body inner wall at the fifth inner diameter 135 e of the main body 130.

In an embodiment, the main body 130 may have any suitable eighth length 136 h. For example, a suitable eighth length 136 h may be from about 3.3-inches to about 13.3-inches, and any range or value there between. In an embodiment, the eighth length 136 h may be about 8.3-inches.

In an embodiment, a fifth shoulder 139 e may transition from the sixth inner diameter 135 f to a seventh inner diameter 135 g of the main body 130. In an embodiment, the fifth shoulder 139 e may form an angle (e.g., about 90-degrees) with the main body inner wall at the sixth inner diameter 135 f of the main body 130.

In an embodiment, the main body 130 may have any suitable ninth length 136 i. For example, a suitable ninth length 136 i may be from about 3.5-inches to about 8.5-inches, and any range or value there between. In an embodiment, the ninth length 136 i may be about 5.5-inches.

In an embodiment, a sixth shoulder 139 f may transition from the seventh inner diameter 135 g to an eighth inner diameter 135 h of the main body 130. In an embodiment, the sixth shoulder 139 f may form an angle (e.g., about 90-degrees) with the main body inner wall at the seventh inner diameter 135 g of the main body 130.

In an embodiment, the main body 130 may have any suitable tenth length 136 j. For example, a suitable tenth length 136 j may be from about 1.5-inches to about 5.5-inches, and any range or value there between. In an embodiment, the tenth length 136 j may be about 3.5-inches.

In an embodiment, a seventh shoulder 139 g may transition from the eighth inner diameter 135 h to a ninth inner diameter 135 i of the main body 130. In an embodiment, the seventh shoulder 139 g may form an angle (e.g., about 15-degrees) with the main body inner wall at the eighth inner diameter 135 h of the main body 130.

In an embodiment, the main body 130 may have any suitable eleventh length 136 k. For example, a suitable eleventh length 136 k may be from about 0.1-inches to about 0.7-inches, and any range or value there between. In an embodiment, the eleventh length 136 k may be about 0.4-inches.

In an embodiment, a seventh shoulder 139 g may transition from the eighth inner diameter 135 h to a ninth inner diameter 135 i of the main body 130. In an embodiment, the seventh shoulder 139 g may form an angle (e.g., about 90-degrees) with the main body inner wall at the eighth inner diameter 135 h of the main body 130.

In an embodiment, the main body 130 may have any suitable twelfth length 136 l. For example, a suitable twelfth length 136 l may be from about 0.1-inches to about 0.9-inches, and any range or value there between. In an embodiment, the twelfth length 136 l may be about 0.5-inches.

In an embodiment, grooves 141 (e.g., splines) may be formed in the main body between the eleventh length 136 k to the twelfth length 136 l of the main body 130. See e.g., FIGS. 1C-1 & 1C-4 .

In an embodiment, the main body 130 may have any suitable total length 136. For example, a suitable total length 136 may be from about 26.5-inches to about 66.5-inches, and any range or value there between. In an embodiment, the total length 136 may be about 46.5-inches.

Secondary Housing

FIG. 1D-1 illustrates a cross-sectional view of a secondary housing 150 of the grapple release tool 100 of FIG. 1A; FIG. 1D-2 illustrates a Section B-B view of the secondary housing 150 of FIG. 1D-1 ; FIG. 1D-3 illustrates a Detail C view of the secondary housing 150 of FIG. 1D-1 ; and FIG. 1D-4 illustrates a Detail D view of the secondary housing 150 of FIG. 1D-1 . As shown in FIGS. 1D-1 to 1D-4 , the secondary housing 150 has a first end 151 and a second end 152.

The secondary housing 150 may be any suitable housing.

The secondary housing 150 may have a first inner diameter 155 a, a second inner diameter 155 b, and a third inner diameter 155 c, an optional first bevel diameter 155 d, an optional second bevel diameter 155 e, an optional counter bore diameter 155 f, a first outer diameter 155 g, and a second outer diameter 155.

In an embodiment, the secondary housing 150 may have any suitable first inner diameter 155 a. For example, a suitable first inner diameter 155 a may be from about 4-inches to about 8.5-inches, and any range or value there between. In an embodiment, the first inner diameter 155 a may be about 5.45-inches.

In an embodiment, the secondary housing 150 may have any suitable second inner diameter 155 b. For example, a suitable second inner diameter 155 b may be from about 4-inches to about 8.5-inches, and any range or value there between. In an embodiment, the second inner diameter 155 b may be about 6.5-inches.

In an embodiment, the secondary housing 150 may have any suitable third inner diameter 155 c. For example, a suitable third inner diameter 155 c may be from about 4-inches to about 8.5-inches, and any range or value there between. In an embodiment, the third inner diameter 155 c may be about 7-inches.

In an embodiment, the secondary housing 150 may have an optional first bevel diameter 155 d. In an embodiment, the secondary housing 150 may have any suitable first bevel diameter 155 d. For example, a suitable first bevel diameter 155 d may be from about 3-inches to about 13-inches, and any range or value there between. In an embodiment, the first bevel diameter 155 d may be about 8.5-inches.

In an embodiment, the secondary housing 150 may have an optional second bevel diameter 155 e. In an embodiment, the secondary housing 150 may have any suitable second bevel diameter 155 e. For example, a suitable second bevel diameter 155 e may be from about 5-inches to about 13-inches, and any range or value there between. In an embodiment, the second bevel diameter 155 e may be about 8.25-inches.

In an embodiment, the secondary housing 150 may have an optional counter bore diameter 155 f. In an embodiment, the secondary housing 150 may have any suitable counter bore diameter 155 f. For example, a suitable counter bore diameter 155 f may be from about 2-inches to about 10-inches, and any range or value there between. In an embodiment, the counter bore diameter 155 f may be about 7-inches.

In an embodiment, the secondary housing 150 may have any suitable first outer diameter 155 g. For example, a suitable first outer diameter 155 g may be from about 4.5-inches to about 9-inches, and any range or value there between. In an embodiment, the first outer diameter 155 g may be about 7.25-inches.

In an embodiment, the secondary housing 150 may have any suitable second outer diameter 155 h. For example, a suitable second outer diameter 155 h may be from about 4.5-inches to about 9-inches, and any range or value there between. In an embodiment, the second outer diameter 155 h may be about 6.55-inches.

In an embodiment, the secondary housing 150 may have any suitable third outer diameter 155 i. For example, a suitable third outer diameter 155 i may be from about 4.5-inches to about 9-inches, and any range or value there between. In an embodiment, the second outer diameter 155 h may be about 6.197-inches.

The secondary housing 150 may have a first length 156 a, a second length 156 b, a third length 156 c, a fourth length 156 d, a fifth length 156 e, a sixth length 156 f, a seventh length 156 g, an eighth length 156 h, a ninth length 156 i, a tenth length 156 j, an eleventh length 156 k, and a total length 156.

In an embodiment, the secondary housing may have any suitable first length 156 a. For example, a suitable first length 156 a may be from about 0.2-inches to about 0.6-inches, and any range or value there between. In an embodiment, the first length 156 a may be about 0.4-inches.

In an embodiment, the secondary housing 150 may have any suitable second length 156 b. For example, a suitable second length 156 b may be from about 0.8-inches to about 1.4-inches, and any range or value there between. In an embodiment, the second length 156 b may be about 1.1-inches.

In an embodiment, one or more grooves 157, 157 a, 157 b for a seal (not shown) may be formed in the secondary housing 150 at, for example, a first length 156 a and/or a second length 156 b. See e.g., FIGS. 1D-1 & 1D-3 .

The plug 270 may have any suitable seal (not shown). For example, a suitable seal (not shown) includes, but is not limited to, an o-ring.

In an embodiment, the secondary housing 150 may have any suitable third length 156 c. For example, a suitable third length 156 c may be from about 1.8-inches to about 2.5-inches, and any range or value there between. In an embodiment, the third length 156 c may be about 2.1-inches.

In an embodiment, a first shoulder 159 a may transition from the first outer diameter 155 g to the second outer diameter 155 h between the third length 156 c and the first end 151 of the secondary housing 150. In an embodiment, the second shoulder 159 b may form an angle (e.g., about 90-degrees) with the secondary housing outer wall at the first outer diameter 155 g at the third length 156 c of the secondary housing 150.

In an embodiment, the secondary housing 150 may have any suitable fourth length 156 d. For example, a suitable fourth length 156 d may be from about 2.8-inches to about 3.5-inches, and any range or value there between. In an embodiment, the fourth length 156 d may be about 3.1-inches.

In an embodiment, grooves 158 (e.g., splines) may be formed in the secondary housing 150 between the third length 156 c to the fourth length 156 d of the secondary housing 150. See e.g., FIGS. 1D-1 to 1D-2 & 1D-4 .

In an embodiment, the groove 158 may have an optional radius, in which the radius (e.g., about 0.125-inch) forms an arc with the secondary housing outer wall of the first outer diameter 155 g at the fourth length 156 d of the secondary housing 150. See e.g., FIGS. 1D-2 & 1D-4 .

In an embodiment, the secondary housing 150 may have any suitable fifth length 156 e. For example, a suitable fifth length 156 e may be from about 2.5-inches to about 8.5-inches, and any range or value there between. In an embodiment, the fifth length 156 e may be about 5.5-inches.

In an embodiment, a second shoulder 159 b may transition from a first outer diameter 155 g to the second outer diameter 155 between the fifth length 156 e and the first end 151 of the secondary housing 150. In an embodiment, the second shoulder 159 b may form an angle (e.g., about 90-degrees) with the secondary housing outer wall at the first outer diameter 155 g at the fifth length 156 e of the secondary housing 150.

In an embodiment, the second shoulder 159 b may have an optional bevel 160, in which the bevel 160 forms an angle (e.g., about 45-degrees) with the secondary housing outer wall of the second outer diameter 155 at the fifth length 156 e of the secondary housing 150.

In an embodiment, the secondary housing 150 may have any suitable sixth length 156 f. For example, a suitable sixth length 156 f may be from about 8-inches to about 16-inches, and any range or value there between. In an embodiment, the sixth length 156 f may be about 12-inches.

In an embodiment, a shoulder 161 may transition from a first inner diameter 155 a to a second inner diameter 155 b at sixth length 156 f of the secondary housing 150. In an embodiment, the shoulder 161 may form an angle (e.g., about 90-degrees) with the secondary housing outer wall at the first inner diameter 155 a of the secondary housing 150.

In an embodiment, the shoulder 161 may have an optional bevel 162, in which the bevel 162 forms an angle (e.g., about 45-degrees) with the secondary housing inner wall of the first inner diameter 155 a at the sixth length 156 f of the secondary housing 150.

In an embodiment, the shoulder 161 may have an optional radius 163, in which the radius (e.g., about 0.3-inch) forms an arc with the secondary housing inner wall of the second inner diameter 155 b at the sixth length 156 f of the secondary housing 150.

In an embodiment, the secondary housing 150 may have any suitable seventh length 156 g. For example, a suitable seventh length 156 g may be from about 2.6-inches to about 6.6-inches, and any range or value there between. In an embodiment, the seventh length 156 g may be about 4.6-inches.

In an embodiment, a box connection 164 may be formed in the secondary housing 150 between the seventh length 156 g and the second end 152 of the secondary housing 150. The box connection forms part of a double shoulder high torque connection. Any suitable double shoulder connection may be used.

In an embodiment, the secondary housing 150 may have any suitable eighth length 156 h. For example, a suitable eighth length 156 h may be from about 0.4-inches to about 0.8-inches, and any range or value there between. In an embodiment, the eighth length 156 h may be about 0.6-inches.

In an embodiment, an optional counter bore 165 may transition from the second inner diameter 155 b to the counter bore diameter 155 f at the eighth length 156 h of the secondary housing 150. In an embodiment, the counter bore 165 forms an angle (e.g., about 35-degrees) with the secondary housing inner wall of the second inner diameter 155 b at the eighth length 156 f of the secondary housing 150.

In an embodiment, the secondary housing 150 may have any suitable ninth length 156 i. For example, a suitable ninth length 156 i may be from about 0.224-inches to about 0.634-inches, and any range or value there between. In an embodiment, the ninth length 156 i may be from about 0.424-inches to about 0.434-inches.

In an embodiment, the secondary housing 150 may have any suitable tenth length 156 j. For example, a suitable tenth length 156 j may be from about 0.023-inches-inches to about 0.043-inches, and any range or value there between. In an embodiment, the tenth length 156 j may be about 0.033-inches.

In an embodiment, the secondary housing 150 may have any suitable eleventh length 156 k. For example, a suitable eleventh length 156 k may be from about 0.115-inches-inches to about 0.135-inches, and any range or value there between. In an embodiment, the eleventh length 156 k may be about 0.125-inches.

In an embodiment, the secondary housing 150 may have any suitable total length 156. For example, a suitable total length 156 may be from about 10-inches to about 30-inches, and any range or value there between. In an embodiment, the total length may be about 18.4 inches.

In an embodiment, the second end 152 may have a bevel 166, in which the bevel 166 forms an angle (e.g., about 45-degrees) with the secondary housing outer wall at the second end 152 of the secondary housing 150.

Pop Lock

FIG. 1E-1 illustrates an end view of a pop lock 170 of the grapple release tool 100 of FIG. 1A; FIG. 1E-2 illustrates a Section A-A view of the pop lock 170 of FIG. 1E-1 ; FIG. 1E-3 illustrates a View B-B of the pop lock 170 of FIG. 1E-2 ; and FIG. 1E-4 illustrates a Detail C view of the pop lock 170 of FIG. 1E-2 . As shown in FIGS. 1E-1 to 1E-4 , the pop lock 170 has a first end 171 (see e.g., FIG. 1E-1 ) and a second end 172.

The pop lock 170 may be any suitable pop lock.

The pop lock 170 may have a first inner diameter 175 a, a second inner diameter 175 b, a first outer diameter 175 c, and second outer diameter 175 d, a third outer diameter 175 e, a fourth outer diameter 175 f, and a fifth outer diameter 175 g.

In an embodiment, the pop lock 170 may have any suitable first inner diameter 175 a. For example, a suitable first inner diameter 175 a may be from about 2.3-inches to about 6.3-inches, and any range or value there between. In an embodiment, the first inner diameter 175 a may be about 4.3-inches.

In an embodiment, the pop lock 170 may have any suitable second inner diameter 175 b. For example, a suitable second inner diameter 175 b may be from about 1.5-inches to about 5.5-inches, and any range or value there between. In an embodiment, the second inner diameter 175 b may be about 3.5-inches.

In an embodiment, the pop lock 170 may have any suitable first outer diameter 175 c. For example, a suitable first outer diameter 175 c may be from about 2.8-inches to about 8.8-inches, and any range or value there between. In an embodiment, the first outer diameter 175 c may be about 5.8-inches.

In an embodiment, the pop lock 170 may have any suitable second outer diameter 175 d. For example, a suitable second outer diameter 175 d may be from about 3-inches to about 9-inches, and any range or value there between. In an embodiment, the second outer diameter 175 d may be about 6-inches.

In an embodiment, the pop lock 170 may have any suitable third outer diameter 175 e. For example, a suitable third outer diameter 175 e may be from about 2.2-inches to about 8.2-inches, and any range or value there between. In an embodiment, the third outer diameter 175 e may be about 5.2-inches.

In an embodiment, the pop lock 170 may have any suitable fourth outer diameter 175 f. For example, a suitable fourth outer diameter 175 f may be from about 2.4-inches to about 8.4-inches, and any range or value there between. In an embodiment, the fourth outer diameter 175 f may be about 5.4-inches.

In an embodiment, the pop lock 170 may have any suitable fifth outer diameter 175 g. For example, a suitable fifth outer diameter 175 g may be from about 2.2-inches to about 8.2-inches, and any range or value there between. In an embodiment, the fifth outer diameter 175 g may be about 5.2-inches.

The pop lock 170 may have a first length 176 a, a second length 176 b, a third length 176 c, a fourth length 176 d, a fifth length 176 e, a sixth length 176 f, a seventh length 176 g, an eighth length 176 h, and a total length 176.

In an embodiment, the pop lock 170 may have any suitable first length 176 a. For example, a suitable first length 176 a may be from about 0.18-inches to about 0.58-inches, and any range or value there between. In an embodiment, the first length 176 a may be about 0.38-inches.

In an embodiment, an optional relief 177 may be formed in the pop lock 170 from the first outer diameter 175 c and the second outer diameter 175 d between the first end 171 to the first length of the pop lock 170.

In an embodiment, the pop lock 170 may have any suitable second length 176 b. For example, a suitable second length 176 b may be from about 2.8-inches to about 6.8-inches, and any range or value there between. In an embodiment, the second length 176 b may be about 3.8-inches.

In an embodiment, a shoulder 178 may transition from the first inner diameter 175 a to the second inner diameter 175 b at the second length 176 b of the pop lock 170. In an embodiment, the shoulder 178 may form an angle (e.g., about 45-degrees) with the pop lock inner wall at the second inner diameter 175 b of the pop lock 170.

In an embodiment, the pop lock 170 may have any suitable third length 176 c. For example, a suitable third length 176 c may be from about 2.3-inches to about 8.3-inches, and any range or value there between. In an embodiment, the third length 176 c may be about 5.3-inches.

In an embodiment, a shoulder 179 may transition from the first outer diameter 175 c to the fourth outer diameter 175 f at the third length 176 c of the pop lock 170. In an embodiment, the shoulder 177 may form an angle (e.g., about 45-degrees) with the pop lock outer wall at the fourth outer diameter 175 f of the pop lock 170.

In an embodiment, the pop lock 170 may have any suitable fourth length 176 d. For example, a suitable fourth length 176 d may be from about 10-inches to about 16-inches, and any range or value there between. In an embodiment, the fourth length 176 d may be about 12-inches.

In an embodiment, finger slots 180 having a first end 180 a and a second end 180 b may be formed in the pop lock 170 between the first end 171 and the fourth length 176 d of the pop lock 170. In an embodiment, the finger slots 180 may have an optional radius 181, in which the radius 181 (e.g., about 0.63-inch) forms an arc at the second end 180 b of the finger slot 180.

In an embodiment, the pop lock 170 may have any suitable fifth length 176 e. For example, a suitable fifth length 176 e may be from about 2-inches to about 10-inches, and any range or value there between. In an embodiment, the fifth length 176 e may be about 6-inches.

In an embodiment, the pop lock 170 may have any suitable sixth length 176 f. For example, a suitable sixth length 176 f may be from about 0.1-inches to about 0.5-inches, and any range or value there between. In an embodiment, the sixth length 176 f may be about 0.3-inches.

In an embodiment, an optional relief 182 may be formed in the pop lock 170 from the third outer diameter 175 e to the fourth outer diameter 175 f at the sixth length 176 f of the pop lock 170.

In an embodiment, the pop lock 170 may have any suitable seventh length 176 g. For example, a suitable seventh length 176 g may be from about 0.5-inches to about 1.3-inches, and any range or value there between. In an embodiment, the seventh length 176 g may be about 0.9-inches.

In an embodiment, an optional relief 183 may be formed in the pop lock 170 from the fifth outer diameter 175 e to the fourth outer diameter 175 f between the seventh length 176 h to the second end 172 of the pop lock 170.

In an embodiment, the pop lock 170 may have any suitable eighth length 176 h. For example, a suitable eighth length 176 h may be from about 1-inch to about 1.8-inches, and any range or value there between. In an embodiment, the eighth length 176 h may be about 1.4-inches.

In an embodiment, the pop lock 170 may have any suitable ninth length 176 i. For example, a suitable ninth length 176 i may be from about 0.2-inches to about 0.8-inches, and any range or value there between. In an embodiment, the ninth length 176 i may be about 0.5-inches.

In an embodiment, the pop lock 170 may have any suitable tenth length 176 j. For example, a suitable tenth length 176 j may be from about 0.425-inches to about 0.825-inches, and any range or value there between. In an embodiment, the tenth length 176 j may be about 0.625-inches

In an embodiment, the pop lock 170 may have any suitable eleventh length 176 k. for example, a suitable eleventh length 176 k may be from about 0.5-inches to about 1-inch, and any range or value there between. In an embodiment, the eleventh length may be about 0.75-inches.

In an embodiment, a slot 184 may be formed in the pop lock 170 from the ninth length 176 i to the second end 172 of the pop lock 170. See e.g., FIGS. 1E-2 & 1E-3 .

In an embodiment, the pop lock 170 may have any suitable total length 176. For example, a suitable total length may be from about 10-inches to about 30-inches, and any range or value there between. In an embodiment, the total length 176 may be about 18.1-inches.

Upper Piston

FIG. 1F-1 illustrates an end view of an upper piston 190 of the grapple release tool 100 of FIG. 1A; FIG. 1F-2 illustrates a Section A-A view of the upper piston 190 of FIG. 1F-1 , showing a groove 197 and a slot 198; FIG. 1F-3 illustrates a Section B-B view of the upper piston 190 of FIG. 1F-1 , showing a vent 199; and FIG. 1F-4 illustrates a Detail C view of the upper piston 190 of FIG. 1F-2 . As shown in FIGS. 1E-1 to 1E-4 , the upper piston 190 has a first end 191 and a second end 192.

The upper piston 190 may be any suitable piston.

The upper piston 190 may have a first inner diameter 195 a, a second inner diameter 195 b, a third inner diameter 195 c, a fourth inner diameter 195 d, a fifth inner diameter 195 e, a first outer diameter, 195 f, a second outer diameter 195 g, a third outer diameter 195 h, a fourth outer diameter 195 i, a fifth outer diameter 195 j, a sixth outer diameter 195 k, a first diameter 195 l and a second diameter 195 m.

In an embodiment, the upper piston 190 may have any suitable first inner diameter 195 a. For example, a suitable first inner diameter 195 a may be from about 1.5-inches to about 5.5-inches, and any range or value there between. In an embodiment, the first inner diameter 195 a may be about 3.5-inches.

In an embodiment, the upper piston 190 may have any suitable second inner diameter 195 b. For example, a suitable second inner diameter 195 b may be from about 1.3-inches to about 5.3-inches, and any range or value there between. In an embodiment, the second inner diameter 195 b may be about 3.3-inches.

In an embodiment, the upper piston 190 may have any suitable third inner diameter 195 c. For example, a suitable third inner diameter 195 c may be from about 1.4-inches to about 5.4-inches, and any range or value there between. In an embodiment, the third inner diameter 195 c may be about 3.4-inches.

In an embodiment, the upper piston 190 may have any suitable fourth inner diameter 195 d. For example, a suitable fourth inner diameter 195 d may be from about 1.3-inches to about 5.3-inches, and any range or value there between. In an embodiment, the fourth inner diameter 195 d may be about 3.3-inches.

In an embodiment, the upper piston 190 may have any suitable fifth inner diameter 195 e. For example, a suitable fifth inner diameter 195 e may be from about 1.5-inches to about 5.5-inches, and any range or value there between. In an embodiment, the fifth inner diameter 195 e may be about 3.5-inches.

In an embodiment, the upper piston 190 may have any suitable first outer diameter 195 f. For example, a suitable first outer diameter 195 f may be from about 2.9-inches to about 6.9-inches, and any range or value there between. In an embodiment, the first outer diameter 195 f may be about 4.9-inches.

In an embodiment, the upper piston 190 may have any suitable second outer diameter 195 g. For example, a suitable second outer diameter 195 g may be from about 2.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the second outer diameter 195 g may be about 4.5-inches.

In an embodiment, the upper piston 190 may have any suitable third outer diameter 195 h. For example, a suitable fourth outer diameter 195 h may be from about 2.9-inches to about 6.9-inches, and any range or value there between. In an embodiment, the fourth outer diameter 195 h may be about 4.9-inches.

In an embodiment, the upper piston 190 may have any suitable fourth outer diameter 195 i. For example, a suitable third outer diameter 195 i may be from about 2.6-inches to about 6.6-inches, and any range or value there between. In an embodiment, the third outer diameter 195 i may be about 4.6-inches.

In an embodiment, the upper piston 190 may have any suitable fifth outer diameter 195 j. For example, a suitable fifth outer diameter 195 j may be from about 2.1-inches to about 6.1-inches, and any range or value there between. In an embodiment, the fifth outer diameter 195 j may be about 4.1-inches.

In an embodiment, the upper piston 190 may have any suitable sixth outer diameter 195 k. For example, a suitable sixth outer diameter 195 k may be from about 2.3-inches to about 6.3-inches, and any range or value there between. In an embodiment, the sixth outer diameter 195 k may be about 4.3-inches.

In an embodiment, the upper piston 190 may have any suitable first diameter 195 l. For example, a suitable first diameter 195 l may be from about 0.152-inches to about 0.192-inches, and any value or range there between. In an embodiment, the first diameter 195 l may be about 0.172-inches.

In an embodiment, the upper piston 190 may have any suitable second diameter 195 m. For example, a suitable second diameter 195 m may be from about 0.15-inches to about 0.35-inches, and any range or value there between. In an embodiment, the second diameter may be about 0.25-inches.

In an embodiment, the upper piston 190 may have a vent 199. See e.g., FIG. 1F-3 .

The upper piston 190 may have a first length 196 a, a second length 196 b, a third length 196 c, a fourth length 196 d, a fifth length 196 e, a sixth length 196 f, a seventh length 196 g, an eighth length 196 h, a ninth length 196 i, a tenth length 196 j, an eleventh length 196 k, a twelfth length 196 l, a thirteenth length 196 m, a fourteenth length 196 n, a fifteenth length 196 o, a sixteenth length 196 p, a seventeenth length 196 q, an eighteenth length 196 r, a nineteenth length 196 s, and a total length 196.

In an embodiment, the first end 191 may have an optional first bevel 196-1 a, in which the first bevel 196-1 a forms an angle (e.g., about 45-degrees) with the upper piston outer wall of the first outer diameter 195 f at the first end 191 (e.g., 0.5-inches×45-degrees) of the upper piston 190.

In an embodiment, the first end 191 has an optional second bevel 196-1 b, in which the second bevel 196-1 b forms an angle (e.g., about 15-degrees) with the upper piston inner wall of the second inner diameter 195 b at the first end 191 of the upper piston 190.

In an embodiment, the upper piston 190 may have any suitable first length 196 a. For example, a suitable first length 196 a may be from about 0.6-inches to about 1-inch, and any range or value there between. In an embodiment, the first length 196 a may be about 0.8-inches.

In an embodiment, the upper piston 190 may have any suitable second length 196 b. For example, a suitable second length 196 b may be from about 0.3-inches to about 0.7-inches, and any range or value there between. In an embodiment, the second length 196 b may be about 0.5-inches.

In an embodiment, one or more first grooves 197 a may be formed in the upper piston 190 for a c-ring at, for example, at a second length 196 b. See e.g., FIG. 1F-2 .

The upper piston 190 may have any suitable c-ring (not shown).

In an embodiment, the upper piston 190 may have any suitable third length 196 c. For example, a suitable third length 196 c may be from about 1.3-inches to about 3.3-inches, and any range or value there between. In an embodiment, the third length 196 c may be about 2.3-inches.

In an embodiment, one or more second grooves 197 b for a seal (not shown) may be formed in the upper piston 190 at, for example, a third length 196 c, a fourth length 196 d, a sixth length 196 f, a seventh 196 g, an eleventh length 196 k and/or a twelfth length 196 l. See e.g., FIGS. 1F-2 & 1F-4 .

The upper piston 190 may have any suitable seal (not shown). For example, a suitable seal (not shown) includes, but is not limited to, an o-ring.

In an embodiment, the upper piston 190 may have any suitable fourth length 196 d. For example, a suitable fourth length 196 d may be from about 1.8-inches to about 3.8-inches, and any range or value there between. In an embodiment, the fourth length 196 d may be about 2.8-inches.

In an embodiment, the upper piston 190 may have any suitable fifth length 196 e. For example, a suitable fifth length 196 e may be from about 1.4-inches to about 5.4-inches, and any range or value there between. In an embodiment, the fifth length 196 e may be about 3.4-inches.

In an embodiment, the upper piston 190 may have any suitable six length 196 f. For example, a suitable sixth length 196 f may be from about 2.4-inches to about 6.4-inches, and any range or value there between. In an embodiment, the sixth length 196 f may be about 4.4-inches.

In an embodiment, the upper piston 190 may have any suitable seventh length 196 g. For example, a suitable seventh length 196 g may be from about 2.9-inches to about 6.9-inches, and any range or value there between. In an embodiment, the seventh length 196 g may be about 4.9-inches.

In an embodiment, the upper piston 190 may have any suitable eighth length 196 h. For example, a suitable eighth length 196 h may be from about 0.3-inches to about 0.7-inches, and any range or value there between. In an embodiment, the eighth length 196 h may be about 0.5-inches.

In an embodiment, one or more third grooves 197 c for a nose shear screw may be formed in the upper piston 190 at, for example, an eighth length 196 h. See e.g., FIG. 1F-2 .

The upper piston 190 may have any suitable nose shear screw. For example, a suitable nose shear screw includes, but is not limited to, a nose shear screw 210.

In an embodiment, the upper piston 190 may have any suitable ninth length 196 i. For example, a suitable ninth length 196 i may be from about 10-inches to about 30-inches, and any range or value there between. In an embodiment, the ninth length 196 i may be about 18.4-inches.

In an embodiment, one or more slots 198 (e.g., 2 slots at 180-degrees, 0.125-inches deep, 0.125-inch radius) may be formed in the upper piston 190 between a ninth length 196 i and a tenth length 196 j. See e.g., FIG. 1F-2 .

In an embodiment, the upper piston 190 may have any suitable tenth length 196 j. For example, a suitable tenth length 196 j may be from about 0.3-inches to about 0.7-inches, and any range or value there between. In an embodiment, the tenth length 196 j may be about 0.5-inches.

In an embodiment, a plurality of screw holes 196-2 may be drilled through the upper piston 190 at the tenth length 196 j. In an embodiment, the plurality of screw holes 196-2 (e.g., 4 screw holes) may have a diameter of about 0.5-inches. See e.g., FIGS. 1F-2 & 1F-3 .

In an embodiment, the upper piston 190 may have any suitable eleventh length 196 k. For example, a suitable eleventh length 196 k may be from about 8.7-inches to about 16.7-inches, and any range or value there between. In an embodiment, the eleventh length 196 k may be about 12.7-inches.

In an embodiment, the upper piston 190 may have any suitable twelfth length 196 l. For example, a suitable twelfth length 196 l may be from about 8.2-inches to about 16.2-inches, and any range or value there between. In an embodiment, the twelfth length 196 l may be about 12.2-inches.

In an embodiment, the upper piston 190 may have any suitable thirteenth length 196 m. For example, a suitable thirteenth length 196 m may be from about 7.8-inches to about 15.8-inches, and any range or value there between. In an embodiment, the thirteenth length 196 m may be about 11.8-inches.

In an embodiment, the upper piston 190 may have any suitable fourteenth length 196 n. For example, a suitable fourteenth length 196 n may be from about 0.1-inches to about 0.5-inches, and any range or value there between. In an embodiment, the fourteenth length 196 n may be about 0.3-inches.

In an embodiment, one or more first vents 199 a may be formed in the upper piston 190 at fourteenth length 196 n. See e.g., FIG. 1F-2 .

In an embodiment, the upper piston 190 may have any suitable fifteenth length 196 o. For example, a suitable fifteenth length 196 o may be from about 0.2-inches to about 0.6-inches, and any range or value there between. In an embodiment, the fifteenth length 196 o may be about 0.4-inches.

In an embodiment, the upper piston 190 may have any suitable sixteenth length 196 p. For example, a suitable sixteenth length 196 p may be from about 0.1-inches to about 0.3-inches, and any range or value there between. In an embodiment, the sixteenth length 196 p may be about 0.2-inches.

In an embodiment, the upper piston 190 may have any suitable seventeenth length 196 q. For example, a suitable seventeenth length 196 q may be from about 8-inches to about 18-inches, and any range or value there between. In an embodiment, the seventeenth length 196 q may be about 13-inches

In an embodiment, the upper piston may have any suitable eighteenth length 196 r. For example, a suitable eighteenth length 196 r may be from about 5-inches to about 21-inches, and any range or value there between. In an embodiment, the eighteenth length may be about 13-inches.

In an embodiment, one or more second vents 199 b may be formed in the upper piston 190 from a first end 191 to the eighteenth length 196 r. See e.g., FIG. 1F-3 .

In an embodiment, one or more third vents 199 c may be formed in the upper piston 190 at the eighteenth length 196 r.

In an embodiment, the upper piston 190 may have any suitable nineteenth length 196 s. For example, a suitable nineteenth length 196 s may be from about 0.1-inches to about 0.5-inches, and any range or value there between. In an embodiment, the nineteenth length 196 s may be about 0.3-inches.

In an embodiment, the upper piston 190 may have any suitable total length 196. For example, a suitable total length 196 may be from about 14-inches to about 34-inches, and any range or value there between. In an embodiment, the total length 196 may be about 23.9-inches.

In an embodiment, the second end 192 may have an optional third bevel 196-1 c, in which the third bevel 196-1 c forms an angle (e.g., about 15-degrees) with the upper piston outer wall of the sixth outer diameter 195 k at the second end 192 (e.g., 0.35-inches×15-degrees) of the upper piston 190.

In an embodiment, the second end 192 has an optional fourth bevel 196-1 d, in which the fourth bevel 196-1 d forms an angle (e.g., about 30-degrees) with the upper piston inner wall of the fourth inner diameter 195 d at the second end 192 of the upper piston 190.

Nose Shear Screw

FIG. 1G-1 illustrates a cross-sectional view of a nose shear screw 210 for the grapple release tool 100 of FIG. 1A; and FIG. 1G-2 illustrates an end view of the nose shear screw 210 of FIG. 1G-1 . As shown in FIGS. 1G-1 and 1G-2 , the nose shear screw 210 has a first end 211 and a second end 212.

The nose shear screw 210 may be any suitable shear screw.

The nose shear screw 210 may have a first diameter 215 a, and a second diameter 215 b.

The nose shear screw 210 may have any suitable first diameter 215 a. For example, a suitable first diameter 215 a may be from about 0.3-inches to about 0.5-inches, and any range or value there between. In an embodiment, the first diameter 215 a may be about 0.4-inches.

In an embodiment, the nose shear screw 210 may have any suitable second diameter 215 b. For example, a suitable second diameter 215 b may be from about 0.2-inches to about 0.4-inches, and any range or value there between. In an embodiment, the second diameter 215 b may be about 0.3-inches.

The nose shear screw 210 has a first length 216 a, a second length 216 b, a third length 216 c, and a total length 216.

In an embodiment, the nose shear screw 210 may have an optional groove 217 at a first end 211 of the nose shear screw 210. See e.g., FIGS. 1G-1 & 1G-2 .

In an embodiment, the nose shear screw 210 may have any suitable first length 216 a. For example, a suitable first length 216 a may be from about 0.2-inches to about 0.4-inches, and any range or value there between. In an embodiment, the first length 216 a may be about 0.3-inches

In an embodiment, the nose shear screw 210 may have any suitable second length 216 b. For example, a suitable second length 216 b may be from about 0.07-inches to about 0.09-inches, and any range or value there between. In an embodiment, the second length 216 b may be about 0.08-inches.

In an embodiment, the nose shear screw 210 may have any suitable third length 216 c. For example, a suitable third length 216 c may be from about 0.7-inches to about 0.9-inches, and any range or value there between. In an embodiment, the third length 216 c may be about 0.8-inches

In an embodiment, the nose shear screw 210 may have a shoulder 218 to transition from a first diameter 215 a to a second diameter 215 b of the nose shear screw 210. In an embodiment, the shoulder 218 may form an angle (e.g., about 45-degrees) with the outer nose shear screw outer wall at the third length 216 c of the nose shear screw 210.

In an embodiment, the nose shear screw 210 may have an optional bevel 219 at the second end of the nose shear screw 210, in which the bevel 219 forms an angle (e.g., about 45-degrees) with the nose shear screw outer wall at the first length 216 a of the nose shear screw 210.

In an embodiment, the nose shear screw 210 may have any suitable total length 216. For example, a suitable total length 216 may be from about 1-inches to about 1.2-inches, and any range or value there between. In an embodiment, the total length 216 may be about 1.1-inches

Pop Lock Spacer

FIG. 1H-1 illustrates an end view of a pop lock spacer 220 for the grapple release tool 100 of FIG. 1A; FIG. 1H-2 illustrates a Section A-A view of the pop lock spacer 220 of FIG. 1H-1 ; and FIG. 1H-3 illustrates a View B-B of the pop lock spacer 220 of FIG. 1H-1 . As shown in FIGS. 1H-1 to 1H-3 , the pop lock spacer 220 has a first end 221 and a second end 222.

The pop lock spacer 220 may be any suitable spacer.

The pop lock spacer 220 may have a first inner diameter 225 a, a second inner diameter 225 b, a third inner diameter 225 c, and an outer diameter 225.

In an embodiment, the pop lock spacer 220 may have any suitable first inner diameter 225 a. For example, a suitable first inner diameter 225 a may be from about 3.5-inches to about 7.5-inches, and any range or value there between. In an embodiment, the first inner diameter 225 a may be about 5.5-inches.

In an embodiment, the pop lock spacer 220 may have any suitable second inner diameter 225 b. For example, a suitable second inner diameter 225 b may be from about 3.3-inches to about 7.3-inches, and any range or value there between. In an embodiment, the second inner diameter 225 b may be about 5.3-inches.

In an embodiment, the pop lock spacer 220 may have any suitable third inner diameter 225 c. For example, a suitable third inner diameter 225 c may be from about 3.5-inches to about 7.5-inches, and any range or value there between. In an embodiment, the third inner diameter 225 c may be about 5.5-inches.

In an embodiment, the pop lock spacer 220 may have any suitable outer diameter 225. For example, a suitable outer diameter 225 may be from about 4.5-inches to about 8.5-inches, and any range or value there between. In an embodiment, the outer diameter 225 may be about 6.5-inches.

The pop lock spacer 220 may have a first length 226 a, a second length 226 b, a third length 226 c, a fourth length 226 d, a fifth length 226 e, and a total length 226.

In an embodiment, the pop lock spacer 220 may have any suitable first length 226 a. For example, a suitable first length 226 a may be from about 0.04-inches to about 0.08-inches, and any range or value there between. In an embodiment, the first length 226 a may be about 0.06-inches.

In an embodiment, the pop lock spacer 220 may have an optional first bevel 227 a at the first end 221 of the pop lock spacer 220, in which the first bevel 227 a forms an angle (e.g., about 45-degrees) with the pop lock spacer outer wall at the first length 226 a of the pop lock spacer 220.

In an embodiment, the pop lock spacer 220 may have any suitable second length 226 b. For example, a suitable second length 226 b may be from about 0.2-inches to about 0.4-inches, and any range or value there between. In an embodiment, the second length 226 b may be about 0.3-inches.

In an embodiment, the pop lock spacer 220 may have an optional second bevel 227 b at the second end 222 of the pop lock spacer 220, in which the second bevel 227 b forms an angle (e.g., about 45-degrees) with the pop lock spacer outer wall at the second length 226 b of the pop lock spacer 220.

In an embodiment, the pop lock spacer 220 may have any suitable third length 226 c. For example, a suitable third length 226 c may be from about 0.4-inches to about 1.2-inches, and any range or value there between. In an embodiment, the third length 226 c may be about 0.8-inches.

In an embodiment, the pop lock spacer 220 may have a slot 228 having a first end 228 a and a second end 228 b may be formed in the pop lock spacer 220 between the first end 221 and the third length 226 c of the pop lock spacer 220. In an embodiment, the slot 228 may have an optional radius, in which the radius (e.g., about 0.03-inch) forms an arc at the second end 228 b of the slot 228. See e.g., FIGS. 1H-2 & 1H-3 .

In an embodiment, a first shoulder 229 a may transition from the first inner diameter 225 a to the second inner diameter 225 b of the pop lock spacer 220. In an embodiment, the first shoulder 229 a may form an angle (e.g., about 45-degrees) with the pop lock spacer inner wall at the second inner diameter 225 b of the pop lock spacer 220.

In an embodiment, the pop lock spacer 220 may have any suitable fourth length 226 d. For example, a suitable fourth length 226 d may be from about 0.2-inches to about 0.8-inches, and any range or value there between. In an embodiment, the fourth length 226 d may be about 0.5-inches.

In an embodiment, a second shoulder 229 b may transition from the second inner diameter 225 b to the third inner diameter 225 c of the pop lock spacer 220. In an embodiment, the second shoulder 229 b may form an angle (e.g., about 45-degrees) with the pop lock spacer inner wall at the second inner diameter 225 b of the pop lock spacer 220.

In an embodiment, the pop lock spacer 220 may have any suitable fifth length 226 e. For example, a suitable fifth length 226 e may be from about 0.6-inches to about 1.4-inches, and any range or value there between. In an embodiment, the fifth length 116 e may be about 1-inch. See e.g., FIG. 1H-3 .

In an embodiment, the pop lock spacer 220 may have any suitable sixth length 226 f. For example, a suitable sixth length 226 f may be from about 0.5-inches to about 1-inch, and any range or value there between. In an embodiment, the sixth length 226 f may be about 0.75-inch. See e.g., FIG. 1H-3 .

In an embodiment, the pop lock spacer 220 may have any suitable total length 226. For example, a suitable total length 226 may be from about 4.5-inches to about 8.5-inches, and any range or value there between. In an embodiment, the total length 226 may be about 6.5-inches.

Bottom Subassembly

FIG. 1I-1 illustrates a cross-sectional view of a bottom subassembly 230 for the grapple release tool of FIG. 1A; and FIG. 1I-2 illustrates a Detail B view of the bottom subassembly 230 of FIG. 1I-1 . In an embodiment, the bottom subassembly 230 has a first end 231 and a second end 232.

The bottom subassembly 230 may be any suitable bottom subassembly.

The bottom subassembly 230 may have a first inner diameter 235 a, a second inner diameter 235 b, a pin nose diameter 235 c, a bevel diameter 235 d, a first outer diameter 235 e and a second outer diameter 235 f.

In an embodiment, the bottom subassembly 230 may have any suitable first inner diameter 235 a. For example, a suitable first inner diameter 235 a may be from about 4-inches to about 8.5-inches, and any range or value there between. In an embodiment, the first inner diameter 235 a may be about 5.5-inches.

In an embodiment, the bottom subassembly 230 may have any suitable second inner diameter 235 b. For example, a suitable second inner diameter 235 b may be from about 1.5-inches to about 5.5-inches, and any range or value there between. In an embodiment, the second inner diameter 235 b may be about 3.5-inches.

In an embodiment, the bottom subassembly 230 may have any suitable pin nose diameter 235 c. For example, a suitable pin nose diameter 235 c may be from about 4.4-inches to about 8.4-inches, and any range or value there between. In an embodiment, the pin nose diameter 235 c may be about 6.4-inches.

In an embodiment, the bottom subassembly 230 may have any suitable bevel diameter 235 d. For example, a suitable bevel diameter 235 d may be from about 3-inches to about 13-inches, and any range or value there between. In an embodiment, the bevel diameter 235 d may be about 8.3-inches.

In an embodiment, the bottom subassembly 230 may have any suitable first outer diameter 235 e. For example, a suitable first outer diameter 235 e may be from about 4.5-inches to about 9-inches, and any range or value there between. In an embodiment, the first outer diameter 235 e may be about 7-inches.

In an embodiment, the bottom subassembly 230 may have any suitable second outer diameter 235 f. For example, a suitable second outer diameter 235 f may be from about 4.5-inches to about 9-inches, and any range or value there between. In an embodiment, the second outer diameter 235 f may be about 8.8-inches.

The bottom subassembly 230 may have a first length 236 a, a second length 236 b, a third length 236 c, a fourth length 236 d, a fifth length 236 e, and a total length 236.

In an embodiment, the bottom subassembly 230 may have any suitable first length 236 a. For example, a suitable first length 236 a may be from about 0.1-inches to about 0.3-inches, and any range or value there between. In an embodiment, the first length 236 a may be about 0.1-inches.

In an embodiment, an optional counter bore 237 may transition from the first inner diameter 235 a to the second inner diameter 155 b at the first length 236 a of the bottom subassembly 230.

In an embodiment, the optional counter bore 237 may have an optional radius, in which the radius (e.g., about 0.125-inch) forms an arc with the bottom subassembly outer wall of the first inner diameter 235 a at the first length 235 a of the bottom subassembly 230. See e.g., FIG. 1I-1 .

In an embodiment, a shoulder 238 a may transition from the inner diameter 235 a to the second inner diameter 235 b of the bottom subassembly 230. In an embodiment, the shoulder 238 a may form an angle (e.g., about 90-degrees) with the bottom subassembly inner wall at the second inner diameter 235 b of the bottom subassembly 230.

In an embodiment, the bottom subassembly 230 may have any suitable second length 236 b. For example, a suitable second length 236 b may be from about 0.1-inches to about 1.2-inches, and any range or value there between. In an embodiment, the second length 236 b may be about 0.5-inches.

In an embodiment, the bottom subassembly 230 may have any suitable third length 236 c. For example, a suitable third length 236 c may be from about 3.5-inches to about 7.5-inches, and any range or value there between. In an embodiment, the third length 236 c may be about 5.5-inches.

In an embodiment, a shoulder 238 b may transition from the first outer diameter 235 e to the second outer diameter 235 f of the bottom subassembly 230. In an embodiment, the shoulder 238 b may form an angle (e.g., about 90-degrees) with the bottom subassembly inner wall at the first outer diameter 235 e of the bottom subassembly 230.

In an embodiment, the shoulder 238 b may have an optional bevel 239, in which the bevel 239 forms an angle (e.g., about 45-degrees) with the bottom subassembly outer wall of the first outer diameter 235 e at the third length 236 c of the bottom subassembly 230.

In an embodiment, a pin nose may be formed in the bottom subassembly 230 between the first end 231 and the third length 236 c of the bottom subassembly 230. The pin nose forms part of a double shoulder high torque connection. Any suitable double shoulder connection may be used.

In an embodiment, the bottom subassembly 230 may have any suitable fourth length 236 d. For example, a suitable fourth length 236 d may be from about 0.4-inches to about 0.8-inches, and any range or value there between. In an embodiment, the fourth length 236 d may be about 0.6-inches.

In an embodiment, the bottom subassembly may have any suitable fifth length 236 e. For example, a suitable fourth length 236 e may be from about 0.01-inches to about 0.042-inches, and any range or value there between. In an embodiment, the fifth length 236 e may be from about 0.02-inches to about 0.032-inches.

In an embodiment, the bottom subassembly 230 may have any suitable total length 236. For example, a suitable total length 236 may be from about 10-inches to about 30-inches, and any range or value there between. In an embodiment, the total length 236 may be about 16-inches.

Upper Dart

FIG. 1J-1 illustrates a cross-sectional view of an upper dart 240 for the grapple release tool 100 of FIG. 1A; FIG. 1J-2 illustrates a Detail B view of the upper dart 240 of FIG. 1J-1 ; FIG. 1J-3 illustrates a Detail C view of the upper dart 240 of FIG. 1J-1 ; and FIG. 1J-4 illustrates a Detail D view of the upper dart 240 of FIG. 1J-1 . As shown in FIGS. 1J-1 to 1J-4 , the upper dart 240 has a first end 241 and a second end 242.

The upper dart 240 may be any suitable dart.

The upper dart 240 may have a first inner diameter 245 a, s second inner diameter 245 b, a first outer diameter 245 c, a second outer diameter 245 d, a third outer diameter 245 e, a fourth outer diameter 245 f, a fifth outer diameter 245 g, and a sixth outer diameter 245 h.

In an embodiment, the upper dart 240 may have any suitable first inner diameter 245 a. For example, a suitable first inner diameter 245 a may be from about 0.2-inches to about 0.8-inches, and any range or value there between. In an embodiment, the first inner diameter 245 a may be about 0.5-inches.

In an embodiment, the upper dart 240 may have any suitable second inner diameter 245 b. For example, a suitable second inner diameter 245 b may be from about 0.2-inches to about 0.8-inches, and any range or value there between. In an embodiment, the second inner diameter 245 b may be about 0.5-inches.

In an embodiment, the upper dart 240 may have any suitable first outer diameter 245 c. For example, a suitable first outer diameter 245 c may be from about 1.5-inches to about 3.5-inches, and any range or value there between. In an embodiment, the first outer diameter 245 c may be about 2.5-inches.

In an embodiment, the upper dart 240 may have any suitable second outer diameter 245 d. For example, a suitable second outer diameter 245 d may be from about 2.3-inches to about 4.3-inches, and any range or value there between. In an embodiment, the second outer diameter 245 d may be about 3.3-inches.

In an embodiment, the upper dart 240 may have any suitable third outer diameter 245 e. For example, a suitable third outer diameter 245 e may be from about 2-inches to about 4-inches, and any range or value there between. In an embodiment, the third outer diameter 245 e may be about 3-inches.

In an embodiment, the upper dart 240 may have any suitable fourth outer diameter 245 f. For example, a suitable fourth outer diameter 245 f may be from about 2.2-inches to about 4.2-inches, and any range or value there between. In an embodiment, the fourth outer diameter 245 f may be about 3.2-inches.

In an embodiment, the upper dart 240 may have any suitable fifth outer diameter 245 g. For example, a suitable fifth outer diameter 245 g may be from about 2-inches to about 4-inches, and any range or value there between. In an embodiment, the fifth outer diameter 245 g may be about 3-inches.

In an embodiment, the upper dart 240 may have any suitable sixth outer diameter 245 h. For example, a suitable sixth outer diameter 245 h may be from about 0.5-inches to about 1.3-inches, and any range or value there between. In an embodiment, the sixth outer diameter 245 h may be about 0.9-inches.

The upper dart may have a first length 246 a, a second length 246 b, a third length 246 c, a fourth length 246 d, a fifth length 246 e, a sixth length 246 f, a seventh length 246 g, an eighth length 246 h, a ninth length 246 i, a tenth length 246 j, an eleventh length 246 k, a twelfth length 246 l, a thirteenth length 246 m, a fourteenth length 246 n, a fifteenth length 246 o, and a total length 246.

In an embodiment, the first end 241 may have an optional first bevel 247 a, in which the first bevel 247 a forms an angle (e.g., about 45-degrees) with the upper dart outer wall of the first outer diameter 245 c at the first end 241 (e.g., 0.125-inches×45-degrees) of the upper dart 240.

In an embodiment, the first end 241 may have an optional first bevel 247 a, in which the first bevel 247 a forms an angle (e.g., about 45-degrees) with the upper dart outer wall of the second outer diameter 245 d at the first end 241 of the upper dart 240. See e.g., FIG. 1J-1 .

In an embodiment, one or more first vents 248 a may be formed in the upper dart at a first bevel 247 a and/or a first end 241. See e.g., FIG. 1J-1 .

In an embodiment, a first connector 250 a may be formed in a first end 241 of the upper dart 240. In an embodiment, the first connector 250 a may connect to, for example, a first end 261 of a wiper ball 260, as discussed below.

In an embodiment, the upper dart 240 may have any suitable first length 246 a. For example, a suitable first length 246 a may be from about 0.9-inches to about 1.5-inches, and any range or value there between. In an embodiment, the first length 246 a may be about 1.1-inches.

In an embodiment, one or more first grooves 249 a for a seal (not shown) may be formed in the upper dart 240 at, for example, a first length 246 a, and/or a second length 246 b. See e.g., FIGS. 1J-1 & 1J-2 .

The upper dart 240 may have any suitable seal (not shown). For example, a suitable seal (not shown) includes, but is not limited to, an o-ring.

In an embodiment, the upper dart 240 may have any suitable second length 246 b. For example, a suitable second length 246 b may be from about 1.9-inches to about 2.5-inches, and any range or value there between. In an embodiment, the second length 246 b may be about 2.1-inches.

In an embodiment, the upper dart 240 may have any suitable third length 246 c. For example, a suitable third length 246 c may be from about 1.4-inches to about 3.4-inches, and any range or value there between. In an embodiment, the third length 246 c may be about 2.9-inches.

In an embodiment, the upper dart 240 may have any suitable fourth length 246 d. For example, a suitable fourth length 246 d may be from about 8.9-inches to about 16.9-inches, and any range or value there between. In an embodiment, the fourth length 246 d may be about 12.9-inches.

In an embodiment, the upper dart 240 may have any suitable fifth length 246 e. For example, a suitable fifth length 246 e may be from about 0.5-inches to about 1.3-inches, and any range or value there between. In an embodiment, the fifth length 246 e may be about 0.9-inches.

In an embodiment, one or more second grooves 249 b for a seal (not shown) may be formed in the upper dart 240 at, for example, a fifth length 246 e and/or a sixth length 246 f See e.g., FIGS. 1J-1 & 1J-3 .

The upper dart 240 may have any suitable seal (not shown). For example, a suitable seal (not shown) includes, but is not limited to, an o-ring.

In an embodiment, the upper dart 240 may have any suitable sixth length 246 f. For example, a suitable sixth length 246 f may be from about 0.2-inches to about 0.6-inches, and any range or value there between. In an embodiment, the sixth length 246 f may be about 0.4-inches.

In an embodiment, the upper dart 240 may have any suitable seventh length 246 g. For example, a suitable seventh length 246 g may be from about 10-inches to about 30-inches, and any range or value there between. In an embodiment, the seventh length 246 g may be about 18.3-inches.

In an embodiment, a second vent 248 b may be formed in the upper dart 240 at, for example, a seventh length 246 g. See e.g., FIG. 1J-1 .

In an embodiment, the second vent 248 b may have an optional third bevel 247 c, in which the third bevel 247 c forms an angle (e.g., about 45-degrees) with the upper dart outer wall of the fourth outer diameter 245 f at the second vent 248 b of the upper dart 240. See e.g., FIG. 1J-1 .

In an embodiment, a third groove 249 c (e.g., 0.125-inches deep) may be formed in the upper dart 240 at, for example, a fourth outer diameter 245 f between a fourth length 246 d and a tenth length 246 j near the second vent 248 b. See e.g., FIG. 1J-1 .

In an embodiment, the upper dart 240 may have any suitable eighth length 246 h. For example, a suitable eighth length 246 h may be from about 10-inches to about 30-inches, and any range or value there between. In an embodiment, the eighth length 246 h may be about 18.9-inches.

In an embodiment, the upper dart 240 may have any suitable ninth length 246 i. For example, a suitable ninth length 246 i may be from about 10-inches to about 30-inches, and any range or value there between. In an embodiment, the ninth length 246 i may be about 19.1-inches.

In an embodiment, one or more fourth grooves 249 d for a seal (not shown) may be formed in the upper dart 240 at, for example, a ninth length 246 i, an eleventh length 246 k and/or a twelfth length 246 l. See e.g., at FIGS. 1J-1 & 1J-3 .

The upper dart 240 may have any suitable seal (not shown). For example, a suitable seal (not shown) includes, but is not limited to, an o-ring.

In an embodiment, the upper dart 240 may have any suitable tenth length 246 j. For example, a suitable tenth length 246 j may be from about 0.3-inches to about 0.7-inches, and any range or value there between. In an embodiment, the tenth length 246 j may be about 0.5-inches.

In an embodiment, a third vent 248 c may be formed in the upper dart 240 at, for example, a tenth length 246 j. See. e.g., FIG. 1J-1 .

In an embodiment, the upper dart 240 may have any suitable eleventh length 246 k. For example, a suitable eleventh length 246 k may be from about 0.2-inches to about 0.6-inches, and any range or value there between. In an embodiment, the eleventh length 246 k may be about 0.4-inches.

In an embodiment, the upper dart 240 may have any suitable twelfth length 246 l. For example, a suitable twelfth length 246 l may be from about 0.5-inches to about 0.1.3-inches, and any range or value there between. In an embodiment, the twelfth length 246 l may be about 0.9-inches.

In an embodiment, the upper dart 240 may have any suitable thirteenth length 246 m. For example, a suitable thirteenth length 246 m may be from about 0.251-inches to about 0.321-inches, and any range or value there between. In an embodiment, the thirteenth length 246 m may be about 0.281-inches to about 0.291-inches.

In an embodiment, the upper dart 240 may have any suitable fourteenth length 246 n. For example, a suitable fourteenth length 246 n may be from about 0.168-inches to about 0.218-inches, and any range or value there between. In an embodiment, the fourteenth length 246 n may be from about 0.188-inches to about 0.198-inches.

In an embodiment, the upper dart 240 may have any suitable fifteenth length 246 o. For example, a suitable fifteenth length 246 o may be from about 0.6-inches to about 0.1.4-inches, and any range or value there between. In an embodiment, the fifteenth length 246 o may be about 1-inch.

In an embodiment, the upper dart 240 may have any suitable total length 246. For example, a suitable total length 246 may be from about 10-inches to about 30-inches, and any range or value there between. In an embodiment, the total length 246 may be about 0.21.9-inches.

In an embodiment, the second end 242 may have an optional second bevel 247 b, in which the second bevel 247 b forms an angle (e.g., about 45-degrees) with the upper dart outer wall of the fourth outer diameter 245 f at second first end 241 (e.g., 1-inches×45-degrees) of the upper dart 240. See. e.g., FIGS. 1J-1 & 1J-4 .

In an embodiment, the second end 242 may have an optional second bevel 247 b, in which the second bevel 247 b forms an angle (e.g., about 45-degrees) with the upper dart outer wall of the fourth outer diameter 245 f at the second end 242 of the upper dart 240.

In an embodiment, a second connector 250 b may be formed in a first end 242 of the upper dart 240. In an embodiment, the second connector 250 b may connect to, for example, a first end 261 of a wiper ball 260, as discussed below.

Wiper Ball

FIG. 1K-1 illustrates an end view of a wiper ball 260 of the grapple release tool 100 of FIG. 1A; and FIG. 1K-2 illustrates a Section A-A view of the wiper ball 260 of FIG. 1K-1 . As shown in FIGS. 1K-1 and 1K-2 , the wiper ball 260 has a first end 261 and a second end 262.

The wiper ball 260 may be any suitable ball.

The wiper ball 260 may have a first diameter 265 a, a second diameter 265 b, a third diameter 265 c, and a fourth diameter 265 d.

In an embodiment, the wiper ball 260 may have any suitable first diameter 265 a. For example, a suitable first diameter 265 a may be from about 0.4-inches to about 0.8-inches, and any range or value there between. In an embodiment, the first diameter 265 a may be about 0.6-inches.

In an embodiment, the wiper ball 260 may have any suitable second diameter 265 b. For example, a suitable second diameter 265 b may be from about 1.5-inches to about 5.5-inches, and any range or value there between. In an embodiment, the second diameter 265 b may be about 3.5-inch.

In an embodiment, the wiper ball 260 may have any suitable third diameter 265 c. For example, a suitable third diameter 265 c may be from about 0.5-inches to about 1.3-inches, and any range or value there between. In an embodiment, the third diameter 265 c may be about 0.9-inches.

In an embodiment, the wiper ball 260 may have any suitable fourth diameter 265 d. For example, a suitable fourth diameter 265 d may be from about 0.6-inches to about 1.4-inches, and any range or value there between. In an embodiment, the fourth diameter 265 d may be about 1-inch.

The wiper ball 260 has a first length 266 a, a second length 266 b, a third length 266 c, a fourth length 266 d, a fifth length 266 e, a sixth length 266 f, a seventh length 266 g, and a total length 266.

In an embodiment, the first end 261 may have an optional bevel 267, in which the bevel 267 forms an angle (e.g., about 45-degrees) with the wiper ball outer wall of the first outer diameter 265 a at the first end 261 of the wiper ball 260.

In an embodiment, the wiper ball 260 may have any suitable first length 266 a. For example, a suitable first length 266 a may be from about 0.3-inches to about 1.2-inches, and any range or value there between. In an embodiment, the first length 266 a may be about 0.6-inches.

In an embodiment, a first shoulder 268 a may transition from the first outer diameter 265 a to the third outer diameter 265 c at the first length 266 a of the wiper ball 260. In an embodiment, the first shoulder 268 a may form an angle (e.g., about 45-degrees) with the wiper ball outer wall at the third outer diameter 265 c of the wiper ball 260.

In an embodiment, the wiper ball 260 may have any suitable second length 266 b. For example, a suitable second length 266 b may be from about 0.6-inches to about 1.4-inches, and any range or value there between. In an embodiment, the second length 266 b may be about 1-inch.

In an embodiment, a second shoulder 268 b may transition from the third outer diameter 265 c to an intermediate diameter at the second length 266 b of the wiper ball 260.

In an embodiment, the wiper ball 260 may have any suitable third length 266 c. For example, a suitable third length 266 c may be from about 0.3-inches to about 1.2-inches, and any range or value there between. In an embodiment, the third length 266 c may be about 0.6-inches.

In an embodiment, a third shoulder 268 c may transition from the intermediate diameter to the third outer diameter 265 c at the third length 266 c of the wiper ball 260.

In an embodiment, the wiper ball 260 may have any suitable fourth length 266 d. For example, a suitable fourth length 266 d may be from about 0.03-inches to about 0.12-inches, and any range or value there between. In an embodiment, the fourth length 266 d may be about 0.06-inches.

In an embodiment, the wiper ball 260 may have any suitable fifth length 266 e. For example, a suitable fifth length 266 e may be from about 2-inches to about 7-inches, and any range or value there between. In an embodiment, the fifth length 266 e may be about 4-inches.

In an embodiment, the wiper ball 260 may have any suitable sixth length 266 f. For example, a suitable sixth length 266 f may be from about 1-inches to about 3-inches, and any range or value there between. In an embodiment, the sixth length 266 f may be about 2-inches.

In an embodiment, the wiper ball 260 may have any suitable seventh length 266 g. For example, a suitable seventh length 266 g may be from about 0.2-inches to about 0.6-inches, and any range or value there between. In an embodiment, the seventh length 266 g may be about 0.4-inches.

In an embodiment, a fourth shoulder 268 d may transition from the third outer diameter 265 c to the fourth outer diameter 265 d at the seventh length 266 g of the wiper ball 260. In an embodiment, the fourth shoulder 268 d may form an angle (e.g., about 90-degrees) with the wiper ball outer wall at the third outer diameter 265 c of the wiper ball 260.

In an embodiment, the second end 262 may have a bevel 269, in which the bevel 269 forms an angle (e.g., about 45-degrees) with the wiper ball outer wall of the fourth outer diameter 265 d at the second end 261 (e.g., 0.375-inch×45-degrees) of the wiper ball 260.

Upper Box Recut Insert

FIG. 1L-1 illustrates an end view of an upper box recut insert 270 of the grapple release tool 100 of FIG. 1A; FIG. 1L-2 illustrates a Section A-A view of the upper box recut insert 270 of FIG. 1L-1 ; and FIG. 1L-3 illustrates a Detail B view of the upper box recut insert 270 of FIG. 1L-2 . As shown in FIGS. 1L-1 to 1L-3 , the upper box recut insert 270 has a first end 271 and a second end 272.

The upper box recut insert 270 may be any suitable insert.

The upper box recut insert 270 may have a first inner diameter 275 a, a second inner diameter 275 b, a third inner diameter 275 c, a fourth inner diameter 275 d, a first outer diameter 275 e, a second outer diameter 275 f, a third outer diameter 275 g, and a fourth outer diameter 275 h.

In an embodiment, the upper box recut insert 270 may have any suitable first inner diameter 275 a. For example, a suitable first inner diameter 275 a may be from about 1.5-inches to about 5.5-inches, and any range or value there between. In an embodiment, the first inner diameter 275 a may be about 3.5-inches.

In an embodiment, the upper box recut insert 270 may have any suitable second inner diameter 275 b. For example, a suitable second inner diameter 275 b may be from about 1.3-inches to about 5.3-inches, and any range or value there between. In an embodiment, the second inner diameter 275 b may be about 3.3-inches.

In an embodiment, the upper box recut insert 270 may have any suitable third inner diameter 275 c. For example, a suitable third inner diameter 275 c may be from about 1.3-inches to about 5.3-inches, and any range or value there between. In an embodiment, the third inner diameter 275 c may be about 3.3-inches.

In an embodiment, the upper box recut insert 270 may have any suitable fourth inner diameter 275 d. For example, a suitable fourth inner diameter 275 d may be from about 2.1-inches to about 8.1-inches, and any range or value there between. In an embodiment, the fourth inner diameter 275 d may be about 5.1-inches.

In an embodiment, the upper box recut insert 270 may have any suitable first outer diameter 275 e. For example, a suitable first outer diameter 275 e may be from about 2.1-inches to about 8.1-inches, and any range or value there between. In an embodiment, the first outer diameter 275 e may be about 5.1-inches.

In an embodiment, the upper box recut insert 270 may have any suitable second outer diameter 275 f. For example, a suitable second outer diameter 275 f may be from about 2.5-inches to about 8.5-inches, and any range or value there between. In an embodiment, the second outer diameter 275 f may be about 5.5-inches.

In an embodiment, the upper box recut insert 270 may have any suitable third outer diameter 275 g. For example, a suitable third outer diameter 275 g may be from about 3.5-inches to about 9.5-inches, and any range or value there between. In an embodiment, the third outer diameter 275 g may be about 6.5-inches.

In an embodiment, the upper box recut insert 270 may have any suitable fourth outer diameter 275 h. For example, a suitable fourth outer diameter 275 h may be from about 3.1-inches to about 9.1-inches, and any range or value there between. In an embodiment, the fourth outer diameter 275 h may be about 6.1-inches.

The upper box recut insert 270 may have a first length 276 a, a second length 276 b, a third length 276 c, a fourth length 276 d, a fifth length 276 e, and a total length 276.

In an embodiment, the first end 261 may have an optional first bevel 277 a, in which the first bevel 277 a forms an angle (e.g., about 45-degrees) with the upper box recut insert outer wall of the fourth outer diameter 275 f at the first end 261 (e.g., 0.15-inches×45-degrees) of the upper box recut insert 270.

In an embodiment, the first end 261 may have an optional third bevel 277 c, in which the third bevel 277 c forms an angle (e.g., about 45-degrees) with the upper box recut insert inner wall of the third inner diameter 275 c at the first end 261 (e.g., 0.15-inches×45-degrees) of the upper box recut insert 270.

In an embodiment, the upper box recut insert 270 may have any suitable first length 276 a. For example, a suitable first length 276 a may be from about 0.2-inches to about 0.4-inches, and any range or value there between. In an embodiment, the first length 276 a may be about 0.3-inches.

In an embodiment, the upper box recut insert 270 may have any suitable second length 276 b. For example, a suitable second length 276 b may be from about 0.4-inches to about 1.2-inches, and any range or value there between. In an embodiment, the second length 276 b may be about 0.8-inches.

In an embodiment, a shoulder 278 may transition from the second outer diameter 275 f to the third diameter 275 g of the upper box recut insert 270. In an embodiment, the shoulder 278 may form an angle (e.g., about 90-degrees) with the upper box recut insert outer wall at the third outer diameter 275 g of the upper box recut insert 270.

In an embodiment, the upper box recut insert 270 may have any suitable third length 276 c. For example, a suitable third length 276 c may be from about 1-inch to about 3-inches, and any range or value there between. In an embodiment, the third length 276 c may be about 2-inches.

In an embodiment, the upper box recut insert 270 may have any suitable fourth length 276 d. For example, a suitable fourth length 276 d may be from about 2-inches to about 6-inches, and any range or value there between. In an embodiment, the fourth length 276 d may be about 4-inches.

In an embodiment, the upper box recut insert 270 may have any suitable fifth length 276 e. For example, a suitable fifth length 276 e may be from about 0.1-inches to about 0.5-inches, and any range or value there between. In an embodiment, the fifth length 276 e may be about 0.3-inches.

In an embodiment, the upper box recut insert 270 may have any suitable total length 276. For example, a suitable total length 276 may be from about 2.8-inches to about 8.8-inches, and any range or value there between. In an embodiment, the total length 276 may be about 5.8-inches.

In an embodiment, the second end 262 may have an optional second bevel 277 b, in which the second bevel 277 b forms an angle (e.g., about 45-degrees) with the upper box recut insert outer wall of the third outer diameter 275 g at the second end 262 (e.g., 0.15-inches×45-degrees) of the upper box recut insert 270.

In an embodiment, the second end 262 may have an optional fourth bevel 277 d, in which the fourth bevel 277 d forms an angle (e.g., about 45-degrees) with the upper box recut insert outer wall of the third inner diameter 275 c at the second end 262 between the third inner diameter 275 c and the fourth inner diameter 275 d of the upper box recut insert 270.

In an embodiment, one or more grooves 279 for a seal (not shown) may be formed in the upper box recut insert 270 at, for example, a first length 276 a, a third length 276 c, and/or a fourth length 276 d. See e.g., FIGS. 1L-2 & 1L-3 .

The upper box recut insert 270 may have any suitable seal (not shown). For example, a suitable seal (not shown) includes, but is not limited to, an o-ring.

Plug

FIG. 1M-1 illustrates an end view of a plug 280 of the grapple release tool 100 of FIG. 1A; FIG. 1M-2 illustrates a Section A-A view of the plug 280 of FIG. 1M-1 ; and FIG. 1M-3 illustrates a Detail B view of the plug 280 of FIG. 1M-2 . As shown in FIGS. 1M-1 and 1M-2 , the plug 280 has a first end 281 and a second end 282.

The plug 280 may be any suitable plug.

The plug 270 may have a first diameter 285 a, a second diameter 285 b, and a third diameter 285 c.

In an embodiment, the plug 270 may have any suitable first diameter. For example, a suitable first diameter 285 a may be from about 0.5-inches to about 1-inch, and any range or value there between. In an embodiment, the first diameter 285 a may be about 0.75-inches.

In an embodiment, the plug 270 may have any suitable second diameter 285 b. For example, a suitable second diameter 285 b may be from about 0.2-inches to about 0.6-inches, and any range or value there between. In an embodiment, the second diameter 285 b may be about 0.4-inches.

In an embodiment, the plug 270 may have any suitable third diameter 285 c. For example, a suitable third diameter 285 c may be from about 0.3-inches to about 0.7-inches, and any range or value there between. In an embodiment, the third diameter 285 c may be about 0.5-inches.

The plug 270 may have a first length 286 a, a second length 286 b, a third length 286 c, a fourth length 286 d, a fifth length 286 e, and a total length 286.

In an embodiment, the plug 270 may have any suitable first length 286 a. For example, a suitable first length 286 a may be from about 0.15-inches to about 0.35-inches, and any range or value there between. In an embodiment, the first length 286 a may be about 0.25-inches.

In an embodiment, the plug 270 may have any suitable second length 286 b. For example, a suitable second length 286 b may be from about 0.175-inches to about 0.575-inches, and any range or value there between. In an embodiment, the second length 286 b may be about 0.375-inches.

In an embodiment, the plug 270 may have any suitable third length 286 c. For example, a suitable third length 286 c may be from about 0.125-inches to about 0.325-inches, and any range or value there between. In an embodiment, the third length 286 c may be about 0.225-inches.

In an embodiment, the plug 270 may have any suitable fourth length 286 d. For example, a suitable fourth length 286 d may be from about 0.04-inches to about 0.12-inches, and any range or value there between. In an embodiment, the fourth length 286 d may be about 0.08-inches.

In an embodiment, the plug may have any suitable fifth length 286 e. For example, a suitable fifth length 286 e may be from about 0.74-inches to about 0.124-inches, and any range or value there between. In an embodiment, the fifth length 286 e may be about 0.94-inches to about 0.104-inches.

In an embodiment, a socket 287 may be formed in the plug 270 at a first end 281.

In an embodiment, the plug 270 may have any suitable socket 287. For example, a suitable socket 287 includes, but is not limited to, a hex socket.

In an embodiment, one or more grooves 288 for a seal (not shown) may be formed in the plug 270 at, for example, a third length 286 c and/or a fourth length 286 d. See e.g., FIGS. 1M-2 & 1M-3 .

The plug 270 may have any suitable seal (not shown). For example, a suitable seal (not shown) includes, but is not limited to, an o-ring.

The socket 287 may have a sixth length 286 f.

In an embodiment, the socket 287 may have any suitable sixth length 286 f. For example, a suitable sixth length 286 f may be from about 0.175-inches to about 0.575-inches, and any range or value there between. In an embodiment, the sixth length 286 f may be about 0.375-inches.

In an embodiment, the plug 270 may have any suitable total length 286. For example, a suitable total length 286 may be from about 0.5-inches to about 1-inch, and any range or value there between. In an embodiment, the total length may be about 0.75-inches.

Upper Ball Seat

FIG. 1N-1 illustrates a cross-sectional view of an upper ball seat 290 of the grapple release tool 100 of FIG. 1A; and FIG. 1N-2 illustrates a Detail B view of the upper ball seat 290 of FIG. 1N-1 . As shown in FIGS. 1N-1 and 1N-2 , the upper ball seat 290 has a first end 291 and a second end 292.

The upper ball seat 290 may be any suitable ball seat.

The upper ball seat 290 may have a first inner diameter 295 a, a second inner diameter 295 b, a third inner diameter 295 c, and a first outer diameter 295 d, a second outer diameter 295 e, and a third outer diameter 295 f.

In an embodiment, the upper ball seat 290 may have any suitable first inner diameter 295 a. For example, a suitable first inner diameter 295 a may be from about 3-inches to about 7-inches, and any range or value there between. In an embodiment, the first inner diameter may be about 5-inches.

In an embodiment, the upper ball seat 290 may have any suitable second inner diameter 295 b. For example, a suitable second inner diameter may be about 1.4-inches to about 5.4-inches, and any range or value there between. In an embodiment, the second inner diameter may be about 3.4-inches.

In an embodiment, the upper ball seat 290 may have any suitable third inner diameter 295 c. For example, a suitable third inner diameter 295 c may be about 1.5-inches to about 5.5-inches, and any range or value there between. In an embodiment, the third inner diameter 295 c may be about 3.5-inches.

In an embodiment, the upper ball seat 290 may have any suitable first outer diameter 295 d. For example, a suitable first outer diameter 295 d may be from about 3-inches to about 7-inches, and any range or value there between. In an embodiment, the first outer diameter 295 d may be about 5-inches.

In an embodiment, the upper ball seat 290 may have any suitable second outer diameter 295 e. For example, a suitable second outer diameter 295 e may be from about 2.5-inches to about 6.5-inches, and any range or value there between. In an embodiment, the second outer diameter 295 e may be about 4.5-inches.

In an embodiment, the upper ball seat 290 may have any suitable third outer diameter 295 f. For example, a suitable third outer diameter 295 f may be from about 2.6-inches to about 6.4-inches and any range or value there between. In an embodiment, the third outer diameter 295 f may be about 4.6-inches.

The upper ball seat 290 may have a first length 296 a, a second length 296 b, a third length 296 c, a fourth length 296 d, a fifth length 296 e, and a total length 296.

In an embodiment, the first end 291 may have a first bevel 297 a (e.g., ball seat), in which the first bevel 297 a forms an angle (e.g., about 30-degrees) with the upper ball seat inner wall of the second inner diameter 295 b at the first end 291 between the first inner diameter 295 a and the second inner diameter 295 b of the upper ball seat.

In an embodiment, the upper ball seat 290 may have any suitable first length 296 a. For example, a suitable first length may be from about 0.675-inches to about 1.075-inches, and any range or value there between. In an embodiment, the first length may be about 0.875-inches.

In an embodiment, the upper ball seat 290 may have any suitable second length 296 b. For example, a suitable second length 296 b may be from about 0.35-inches to about 0.75-inches, and any range or value there between. In an embodiment, the second length may be about 0.55-inches.

In an embodiment, a first groove 298 a for a second shear screw 210 may be formed in the upper ball seat 290 between the second length 296 b and the third length 296 c of the upper ball seat 290.

The upper ball seat 290 may have any suitable shear screw. For example, a suitable shear screw includes, but is not limited to, a nose shear screw 210. See e.g., FIGS. 1G-2 & 1G-2 .

In an embodiment, the upper ball seat 290 may have any suitable third length 296 c. For example, a suitable third length 296 c may be from about 1.2-inches to about 2.2-inches, and any range or value there between. In an embodiment, the third length 296 c may be about 1.8-inches.

In an embodiment, the upper ball seat 290 may have any suitable fourth length 296 d. For example, a suitable fourth length 296 d may be from about 1.75-inches to about 3.75-inches, and any range or value there between. In an embodiment, the fourth length 296 d may be about 2.75-inches.

In an embodiment, the upper ball seat 290 may have any suitable fifth length 296 e. For example, a suitable fifth length 296 e may be from about 0.175-inches to about 0.475-inches, and any range or value there between. In an embodiment, fifth length 296 e may be about 0.375-inches.

In an embodiment, the upper ball seat 290 may have any suitable sixth length 296 f. For example, a suitable sixth length 296 f may be from about 0.261-inches to about 0.306-inches, and any range or value there between. In an embodiment, the sixth length 296 f may be about 0.281-inches to about 0.286-inches.

In an embodiment, the second end 292 may have an optional second bevel 297 b, in which the second bevel 297 b forms an angle (e.g., about 45-degrees) with the upper ball seat outer wall of the first outer diameter 295 d at the second end 292 of the upper ball seat 290.

In an embodiment, the second end 292 may have an optional third bevel 297 c, in which the third bevel 297 c forms an angle (e.g., about 30-degrees) with the upper ball seat inner wall of the third inner diameter 295 c at the second end 292 between the second inner diameter 295 b and the third inner diameter 295 c of the upper ball seat 290.

In an embodiment, one or more second grooves 298 b for a seal (not shown) may be formed in the upper ball set 290 at, for example, a first length 296 a, a fourth length 296 d, and/or a fifth length 296 e. See e.g., FIGS. 1N-1 & 1N-2 .

The upper ball seat 290 may have any suitable seal (not shown). For example, a suitable seal (not shown) includes, but is not limited to, an o-ring.

Assembly of Grapple Release Tool

In an embodiment, an upper piston 190 may be installed into a main body 130. In an embodiment, before the upper piston 190 may be installed into the main body 130, the upper piston 190 may be dressed with seals (e.g., o-rings) and c-rings, as needed.

In an embodiment, a temporary shear screw may be installed into the main body 130 to prevent the upper piston 190 from moving during the remaining assembly.

In an embodiment, a pop lock 170 may be installed into the main body 130.

In an embodiment, a secondary housing 150 may be installed over the pop lock 170 and into grooves (e.g., splines) of the main body 130. In an embodiment, before the secondary housing 150 may be installed over the pop lock 170 and into the splines of the main body 130, the secondary housing 150 may be dressed with seals (e.g., o-rings), as needed.

In an embodiment, a pop lock spacer 220 may be installed onto the pop lock 170.

In an embodiment, an upper box recut insert 270 may be installed into the main body 130. In an embodiment, before the upper box recut insert 270 may be installed into the main body 130, the upper box recut 270 insert may be dressed with seals (e.g., o-rings), as needed.

In an embodiment, an upper ball seat 290 may be installed into a top subassembly 110. In an embodiment, before the upper ball seat 290 may be installed into the top subassembly 110, the upper ball seat 290 may be dressed with seals (e.g., o-rings), as needed.

In an embodiment, a temporary shear screw may be installed into the top subassembly 110 to prevent the upper ball seat 290 from moving during the remaining assembly.

In an embodiment, the top subassembly 110 may be installed onto the main body 130.

In an embodiment, a bottom subassembly 230 may be installed onto the main body 130.

In an embodiment, the temporary shear screws may be removed from the main body 130 and the top subassembly 110.

In an embodiment, a nose shear screw 210 may be installed on the main body 130 and the top subassembly 110, as needed for operation.

In an embodiment, a plug 280 may be installed into main body 130. In an embodiment, before the plug 280 may be installed into the main body 130, the plug 280 may be dressed with seals (e.g., o-rings), as needed.

FIG. 2A-1 illustrates a cross-sectional view of the grapple release tool 100 of FIG. 1A, showing the grapple release tool 100 in a non-activated (latched) position; and FIGS. 2A-2 to 2A-4 illustrate detail views of the grapple release tool 100 of FIG. 2A-1 .

FIG. 2B-1 illustrates a cross-sectional view of the grapple release tool 100 of FIG. 1A, showing the grapple release tool 100 in an activated (unlatched) position; and FIGS. 2B-2 to 2B-4 illustrate detail views of the grapple release tool 100 of FIG. 2B-1 .

FIG. 2C-1 illustrates a cross-sectional view of the grapple release tool 100 of FIG. 1A, showing the grapple release tool 100 in a piston vent position; and FIGS. 2C-2 to 2C-4 illustrate detail views of the grapple release tool of FIG. 2C-1 .

Ball

In an embodiment, the grapple release tool 100 may further include a ball 2100.

The ball may be made of any suitable material. For example, a suitable material includes, but is not limited to, a plastic, a rubber, and combinations thereof. In an embodiment, the ball 2100 may be made from a plastic. In an embodiment, the ball 2100 may be made from a rubber.

The ball 2100 may have an outer diameter 2105.

The ball 210 o may have any suitable outer diameter 2105. For example, a suitable outer diameter 2105 may be from about 1.437-inches to about 5.437-inches, and any range or value there between. In an embodiment, the outer diameter 2105 may be about 3.437-inches.

Operation of Grapple Release Tool

The grapple release tool 100 may be placed in strategic places within the bottom hole assembly (BHA) to provide optimal results when retrieving the bottom hole assembly from a stuck position in the well.

Once the bottom hole assembly becomes stuck, an operator makes a decision to activate the grapple release tool 100. In the activated position, the grapple release tool 100 opens a fluid bypass to maintain circulation.

To activate the grapple release tool 100, an upper dart 240 may be placed inside the drill string and deployed by gravity or by pumping down the bore of the drill string. Once the upper dart 240 lands on inside the upper box recut insert 270, the grapple release tool 100 diverts fluid flow (pressure) to a piston bias area of the upper piston 190. The grapple release tool 100 (e.g., shift-up upper piston design) prevents an accidental activation if something other than an intended dart lands (e.g., drifts, darts for other tools, etc.) on the upper box recut insert 270.

Once sufficient fluid flow (pressure) has built up to overcome friction of a pop lock 170 and a first nose shear screw 210, the grapple release tool 100 shifts the upper piston 190 upward, releasing a finger 180 c on the pop lock 170 from a main body 130. The grapple release tool 100 separates cleanly at the main body 130 and the secondary housing 150, leaving a large path for fishing operations.

Once the grapple release tool 100 is activated, the grapple release tool 100 connects one or more vents 248 a, 248 b, 248 c in an upper dart 240, one or more vents 199 a, 199 b, 199 c in an upper piston 190 and a plurality of screw holes 140 in a main housing 130, allowing fluid flow from an interior of the main body 130 to an exterior of the main body 130.

If needed, a ball 260 to be deployed to shift the upper ball seat 290 downward if a larger fluid path is needed, as discussed below.

The ball 299 has an outer diameter 2100.

In an embodiment, the ball 299 may have any suitable outer diameter 2100. For example, a suitable outer diameter 2100 may be from about 1.437-inches to about 5.437-inches, and any range or value there between. In an embodiment, the outer diameter may be about 3.437-inches.

To shift the upper ball seat 290, a ball 299 may be placed inside the drill string and deployed by gravity or by pumping down the bore of the drill string. Once the ball 299 lands on the upper ball seat 290, the ball 299 seals the upper ball seat 290.

Once sufficient fluid flow (pressure) has built up to overcome friction of the upper ball seat 290 and a second nose shear screw (not shown), the grapple release tool 100 shifts the upper ball seat 290 downward, exposing one or more vents 2001 in the top subassembly 110 and allowing fluid flow from an interior of the top subassembly 110 to an exterior of the top subassembly 110.

Method of Making Grapple Release Tool

FIG. 3A illustrates a flow chart of a method of making a grapple release tool 300 according to an embodiment of the invention; and FIG. 3B illustrates a flow chart of the method 300 of FIG. 3A, showing additional steps. As shown in FIG. 3A, the method 300 may include

(a) installing an upper piston into a main body 302;

(b) installing a pop lock into the main body 304;

(c) installing a secondary housing over the pop lock and into main housing 306;

(d) installing an optional pop lock spacer onto the pop lock 308;

(e) installing an upper box recut insert into the main body 310;

(f) installing an upper ball seat into a top subassembly 312;

(g) installing the top subassembly onto the main body 314; and

(h) installing a bottom subassembly onto the main body 316.

As shown in FIG. 3B, the method 300 may further include:

(i) installing first nose shear screw into the main body and a second nose shear screw into the top subassembly 318; and/or

(j) installing a plug into the main body 320.

In an embodiment, step (a) may include:

(a) dressing the upper piston with a first seal and a c-ring; and then installing the upper piston into the main body.

In an embodiment, step (a) may include:

(a) installing the upper piston on the main body and then installing a first temporary shear screw into the main body to prevent the upper piston from moving during assembly.

In an embodiment, step (c) may include:

(c) installing the secondary housing over the pop lock and into splines of the main body.

In an embodiment, step (c) may include:

(c) dressing the secondary housing with a second seal and then installing the secondary housing over the pop lock and into the main housing.

In an embodiment, step (e) may include:

(e) dressing the upper box recut insert with a third seal and then installing the upper box recut insert into the main body.

In an embodiment, step (f) may include:

(f) dressing the upper ball seat with a fourth seal and then installing the upper ball seat into the top subassembly.

In an embodiment, step (g) may include:

(g) installing the top assembly onto the main body and then installing a second temporary shear screw into the top subassembly to prevent the upper ball seat from moving during the remaining assembly.

In an embodiment, steps (a) and (i) may include:

(a) installing the upper piston on the main body and then installing a first temporary shear screw into the main body to prevent the upper piston from moving during assembly; and

(i) removing the first temporary shear screw from the main body and then installing a first nose shear screw into the main body.

In an embodiment, steps (g) and (j) may include:

(g) installing the top assembly onto the main body and then installing a second temporary shear screw into the top subassembly to prevent the upper ball seat from moving during the remaining assembly; and

(j) removing the second temporary shear screw from the top subassembly and then installing a second nose shear screw into the top subassembly.

In an embodiment, step (j) may include:

(j) dressing the plug with a seal and then installing the plug into the main body.

Method of Using Grapple Release Tool

FIG. 4A illustrates a flow chart of a method of using a grapple release tool 400 according to an embodiment of the invention; and FIG. 4B illustrates a flow chart of the method 400 of FIG. 4A, showing an additional step for the method 400. As shown in FIG. 4A, the method 400 may include:

(a) locating a grapple release tool within a bottom hole assembly 402;

(b) placing an upper dart inside a drill string and deploying the upper dart down a bore of the drill string 404;

(c) when the upper dart lands inside an upper box recut insert, diverting fluid flow to a piston bias area of an upper piston 406;

(d) when the fluid flow overcomes a pop lock, shifting the upper piston upward and releasing the pop lock from the main body 408.

As shown in FIG. 4B, the method 400 may further include:

(e) diverting fluid flow through a vent 410.

As shown in FIG. 4B, the method 400 may further include:

(f) separating the main body from the secondary housing 412.

In an embodiment step (a) may include:

(a) locating the grapple release tool within the bottom hole assembly to provide optimal results when retrieving the bottom hole assembly from a stuck position in a well bore.

In an embodiment, step (b) may include:

(b) placing the upper dart inside the drill string and deploying the upper dart by gravity or by pumping down the bore of the drill string.

In an embodiment, step (d) may include:

(d) when the fluid flow overcomes the pop lock and a first nose shear screw, shifting the upper piston upward and releasing a finger on the pop lock from the main body.

FIG. 5A illustrates a flow chart of a method of using a grapple release tool 500 according to an embodiment of the invention; and FIG. 5B illustrates a flow chart of the method 500 of FIG. 5A, showing an additional step for the method 500. As shown in FIG. 5A, the method 400 may include:

(a) locating a grapple release tool within a bottom hole assembly 502;

(b) placing a ball inside a drill string and deploying the ball down a bore of the drill string 504;

(c) when the upper dart lands on an upper ball seat, sealing the upper ball seat 506;

(d) when the fluid flow overcomes a second nose shear screw, shifting the upper ball seat downward 508.

As shown in FIG. 5B, the method 500 may further include:

(e) diverting fluid flow through a vent 510.

In an embodiment step (a) may include:

(a) locating the grapple release tool within the bottom hole assembly to provide optimal results when retrieving the bottom hole assembly from a stuck position in a well bore.

In an embodiment, step (b) may include:

(b) placing the ball inside the drill string and deploying the ball by gravity or by pumping down the bore of the drill string.

In the foregoing description of certain embodiments, specific terminology has been resorted to for the sake of clarity. However, the disclosure is not intended to be limited to the specific terms so selected, and it is to be understood that each specific term includes other technical equivalents which operate in a similar manner to accomplish a similar technical purpose. Terms (e.g., “outer” and “inner,” “upper” and “lower,” “first” and “second,” “internal” and “external,” “above” and “below” and the like) are used as words of convenience to provide reference points and, as such, are not to be construed as limiting terms.

The embodiments set forth herein are presented to best explain the present invention and its practical application and to thereby enable those skilled in the art to make and utilize the invention. However, those skilled in the art will recognize that the foregoing description has been presented for the purpose of illustration and example only. The description as set forth is not intended to be exhaustive or to limit the invention to the precise form disclosed. Many modifications and variations are possible in light of the above teaching without departing from the spirit and scope of the following claims.

Also, the various embodiments described above may be implemented in conjunction with other embodiments, e.g., aspects of one embodiment may be combined with aspects of another embodiment to realize yet other embodiments. Further, each independent feature or component of any given assembly may constitute an additional embodiment.

Definitions

As used herein, the terms “a,” “an,” “the,” and “said” mean one or more, unless the context dictates otherwise.

As used herein, the term “about” means the stated value plus or minus a margin of error plus or minus 10% if no method of measurement is indicated.

As used herein, the term “or” means “and/or” unless explicitly indicated to refer to alternatives only or if the alternatives are mutually exclusive.

As used herein, the terms “comprising,” “comprises,” and “comprise” are open-ended transition terms used to transition from a subject recited before the term to one or more elements recited after the term, where the element or elements listed after the transition term are not necessarily the only elements that make up the subject.

As used herein, the terms “containing,” “contains,” and “contain” have the same open-ended meaning as “comprising,” “comprises,” and “comprise,” provided above.

As used herein, the terms “having,” “has,” and “have” have the same open-ended meaning as “comprising,” “comprises,” and “comprise,” provided above.

As used herein, the terms “including,” “includes,” and “include” have the same open-ended meaning as “comprising,” “comprises,” and “comprise,” provided above.

As used herein, the phrase “consisting of” is a closed transition term used to transition from a subject recited before the term to one or more material elements recited after the term, where the material element or elements listed after the transition term are the only material elements that make up the subject.

As used herein, the term “simultaneously” means occurring at the same time or about the same time, including concurrently.

Incorporation By Reference. All patents and patent applications, articles, reports, and other documents cited herein are fully incorporated by reference to the extent they are not inconsistent with this invention. 

What is claimed is:
 1. A grapple release tool comprising: a main body; an upper piston, wherein the upper piston is disposed inside the main body, and wherein the upper piston is adapted to shift towards a first end of the main body; a pop lock, wherein the pop lock is disposed inside the main body, wherein the pop lock is removably connected to the upper piston; a secondary housing, wherein the secondary housing is disposed inside the main body over the pop lock; an optional pop lock spacer disposed in the secondary housing, wherein the optional pop lock spacer is disposed around a second end of the pop lock; and an upper box recut insert disposed in a first end portion of the main body.
 2. The grapple release tool of claim 1, wherein the main body further comprises a first nose shear screw and a plug.
 3. The grapple release too of claim 2, wherein the first nose shear screw prevents the upper piston from shifting until the grapple release tool is activated with an upper dart.
 4. The grapple release tool of claim 1, wherein one or more of the main body, the pop lock, the optional pop lock spacer, the secondary housing, and the upper box recut insert is made from a stainless steel with a minimum yield of 130 ksi.
 5. The grapple release tool of claim 1, wherein one or more of the main body, the pop lock, the optional pop lock spacer, the secondary housing and the upper box recut insert is made from a stainless steel.
 6. The grapple release tool of claim 1, wherein an outer diameter of the main body is from about 4.5-inches to about 9-inches.
 7. The grapple release tool of claim 1 further comprising: a top subassembly; and an upper ball seat disposed inside the top assembly, wherein the upper ball seat is adapted to shift towards a shoulder of the top subassembly; wherein the first end of the main body is connected to a second end of the top subassembly.
 8. The grapple release tool of claim 6, wherein the top subassembly further comprises a second nose shear screw.
 9. The grapple release tool of claim 8, wherein the second nose shear screw prevents the upper ball seat from shifting downward until the grapple release tool is activated with a ball.
 10. The grapple release tool of claim 8 further comprising: a bottom subassembly; wherein a first end of the bottom subassembly is connected to a second end of the secondary housing.
 11. The grapple release tool of claim 10 further comprising: an upper dart; wherein a first end of the upper dart is at least partially disposed within the upper box recut insert.
 12. The grapple release tool of claim 10 further comprising: an upper dart; and a wiper ball, wherein the wiper ball is latched to a first end and/or a second end of the upper dart; wherein the first end of the upper dart is at least partially disposed within the upper box recut insert.
 13. The grapple release tool of claim 10 further comprising: a ball, wherein the ball is disposed in the upper ball seat.
 14. The grapple release tool of claim 10 further comprising: a ball, wherein the ball is disposed in a seat of the upper ball seat.
 15. A method of making a grapple release tool comprising: (a) installing an upper piston into a main body; (b) installing a pop lock into the main body; (c) installing a secondary housing over the pop lock and into main housing; (d) installing an optional pop lock spacer onto the pop lock; (e) installing an upper box recut insert into the main body; (f) installing an upper ball seat into a top subassembly; (g) installing the top subassembly onto the main body; and (h) installing a bottom subassembly onto the main body;
 16. The method of claim 15 further comprising: (i) installing first nose shear screw into the main body to prevent the upper piston from shifting until the grapple release tool is activated, and a second nose shear screw into the top subassembly to prevent the upper ball seat from shifting until the grapple release tool is further activated.
 17. The method of claim 16 further comprising: (j) installing a plug into the main body.
 18. The method of claim 15, wherein step (a) comprises: (a) dressing the upper piston with a first seal and a c-ring; and then installing the upper piston into the main body.
 19. The method of claim 15, wherein step (a) comprises: (a) installing the upper piston on the main body and then installing a first temporary shear screw into the main body to prevent the upper piston from moving during assembly.
 20. The method of claim 15, wherein step (c) comprises: (c) installing the secondary housing over the pop lock and into splines of the main body.
 21. The method of claim 15, wherein step (c) comprises: (c) dressing the secondary housing with a second seal and then installing the secondary housing over the pop lock and into the main housing.
 22. The method of claim 15, wherein step (e) comprises: (e) dressing the upper box recut insert with a third seal and then installing the upper box recut insert into the main body.
 23. The method of claim 15, wherein step (f) comprises: (f) dressing the upper ball seat with a fourth seal and then installing the upper ball seat into the top subassembly.
 24. The method of claim 15, wherein step (g) comprises: (g) installing the top assembly onto the main body and then installing a second temporary shear screw into the top subassembly to prevent the upper ball seat from moving during the assembly.
 25. The method of claim 16 further comprising: (i) removing the first temporary shear screw from the main body and then installing a first nose shear screw into the main body, and removing the second temporary shear screw from the top subassembly and then installing a second nose shear screw into the top subassembly.
 26. The method of claim 17, wherein step (j) comprises: (j) dressing the pug with a seal and then installing the plug into the main body.
 27. A method of using a grapple release tool comprising: (a) locating a grapple release tool within a bottom hole assembly; (b) placing an upper dart inside a drill string and deploying the upper dart down a bore of the drill string; (c) when the upper dart lands inside an upper box recut insert, the grapple release tool diverts fluid flow to a piston bias area of an upper piston; and (d) when the fluid flow overcomes a pop lock, the grapple release tool shifts the upper piston upward and releases the pop lock from the main body.
 27. The method of claim 27, wherein step (a) comprises: (a) locating the grapple release tool within the bottom hole assembly to provide optimal results when retrieving the bottom hole assembly from a stuck position in a well bore.
 28. The method of claim 27, wherein step (b) comprises: (b) placing the upper dart inside the drill string and deploying the upper dart by gravity or by pumping down the bore of the drill string.
 29. The method of claim 27, wherein step (d) comprises: (d) when the fluid flow overcomes the pop lock and a first nose shear screw, shifting the upper piston upward and releasing a finger on the pop lock from the main body.
 30. The method of claim 27 further comprising: (e) diverting fluid flow thorough a vent.
 31. The method of claim 30 further comprising: (f) separating the main body from a secondary housing.
 32. A method of using a grapple release tool comprising: (a) locating a grapple release tool within a bottom hole assembly; (b) placing a ball inside the drill string and deploying the ball by gravity or by pumping down the bore of the drill string; (c) when the ball lands on an upper ball seat, sealing the upper ball seat; and (d) when the fluid flow overcomes the upper ball seat and a second nose shear screw, shifting the upper ball seat downward against a shoulder in a top subassembly.
 33. The method of claim 32 further comprising: (e) diverting fluid flow through a vent.
 34. The method of claim 32, wherein step (b) comprises: (b) placing the ball inside the drill string and deploying the ball by gravity or by pumping down the bore of the drill string.
 35. The method of claim 32, wherein step (a) comprises: (a) locating the grapple release tool within the bottom hole assembly to provide optimal results when retrieving the bottom hole assembly from a stuck position in a well bore.
 36. The method of claim 32, wherein step (b) comprises: (b) placing the ball inside the drill string and deploying the ball by gravity or by pumping down the bore of the drill string. 